<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">
  <url>
    <loc>https://curvg.com/</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/"/>
    <changefreq>weekly</changefreq>
    <priority>1</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/"/>
    <changefreq>weekly</changefreq>
    <priority>1</priority>
  </url>
  <url>
    <loc>https://curvg.com/creator</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/creator"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/creator"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/creator"/>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/creator</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/creator"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/creator"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/creator"/>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
  <url>
    <loc>https://curvg.com/math-animation-tool</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/math-animation-tool"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/math-animation-tool"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/math-animation-tool"/>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/math-animation-tool</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/math-animation-tool"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/math-animation-tool"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/math-animation-tool"/>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://curvg.com/free-math-video-creator</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/free-math-video-creator"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/free-math-video-creator"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/free-math-video-creator"/>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/free-math-video-creator</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/free-math-video-creator"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/free-math-video-creator"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/free-math-video-creator"/>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://curvg.com/manim-alternative</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/manim-alternative"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/manim-alternative"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/manim-alternative"/>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/manim-alternative</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/manim-alternative"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/manim-alternative"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/manim-alternative"/>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves"/>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves"/>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/lissajous-curve</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/lissajous-curve"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/lissajous-curve"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/lissajous-curve"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/lissajous-curve</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/lissajous-curve"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/lissajous-curve"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/lissajous-curve"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/superellipse</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/superellipse"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/superellipse"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/superellipse"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/superellipse</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/superellipse"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/superellipse"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/superellipse"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/butterfly-curve</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/butterfly-curve"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/butterfly-curve"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/butterfly-curve"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/butterfly-curve</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/butterfly-curve"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/butterfly-curve"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/butterfly-curve"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/heart-curve</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/heart-curve"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/heart-curve"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/heart-curve"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/heart-curve</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/heart-curve"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/heart-curve"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/heart-curve"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/rose-curve</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/rose-curve"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/rose-curve"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/rose-curve"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/rose-curve</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/rose-curve"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/rose-curve"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/rose-curve"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/cardioid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/cardioid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/cardioid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/cardioid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/cardioid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/cardioid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/cardioid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/cardioid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/limacon</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/limacon"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/limacon"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/limacon"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/limacon</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/limacon"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/limacon"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/limacon"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/lemniscate-of-bernoulli</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/lemniscate-of-bernoulli"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/lemniscate-of-bernoulli"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/lemniscate-of-bernoulli"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/lemniscate-of-bernoulli</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/lemniscate-of-bernoulli"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/lemniscate-of-bernoulli"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/lemniscate-of-bernoulli"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/cissoid-of-diocles</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/cissoid-of-diocles"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/cissoid-of-diocles"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/cissoid-of-diocles"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/cissoid-of-diocles</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/cissoid-of-diocles"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/cissoid-of-diocles"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/cissoid-of-diocles"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/cycloid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/cycloid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/cycloid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/cycloid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/cycloid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/cycloid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/cycloid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/cycloid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/epicycloid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/epicycloid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/epicycloid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/epicycloid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/epicycloid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/epicycloid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/epicycloid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/epicycloid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/hypocycloid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/hypocycloid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/hypocycloid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/hypocycloid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/hypocycloid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/hypocycloid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/hypocycloid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/hypocycloid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/hypotrochoid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/hypotrochoid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/hypotrochoid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/hypotrochoid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/hypotrochoid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/hypotrochoid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/hypotrochoid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/hypotrochoid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/epitrochoid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/epitrochoid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/epitrochoid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/epitrochoid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/epitrochoid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/epitrochoid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/epitrochoid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/epitrochoid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/astroid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/astroid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/astroid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/astroid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/astroid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/astroid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/astroid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/astroid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/deltoid-curve</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/deltoid-curve"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/deltoid-curve"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/deltoid-curve"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/deltoid-curve</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/deltoid-curve"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/deltoid-curve"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/deltoid-curve"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/nephroid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/nephroid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/nephroid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/nephroid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/nephroid</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/nephroid"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/nephroid"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/nephroid"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/archimedean-spiral</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/archimedean-spiral"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/archimedean-spiral"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/archimedean-spiral"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/archimedean-spiral</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/archimedean-spiral"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/archimedean-spiral"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/archimedean-spiral"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/logarithmic-spiral</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/logarithmic-spiral"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/logarithmic-spiral"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/logarithmic-spiral"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/logarithmic-spiral</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/logarithmic-spiral"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/logarithmic-spiral"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/logarithmic-spiral"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/fermat-spiral</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/fermat-spiral"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/fermat-spiral"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/fermat-spiral"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/fermat-spiral</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/fermat-spiral"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/fermat-spiral"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/fermat-spiral"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/golden-spiral</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/golden-spiral"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/golden-spiral"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/golden-spiral"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/golden-spiral</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/golden-spiral"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/golden-spiral"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/golden-spiral"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/involute-of-a-circle</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/involute-of-a-circle"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/involute-of-a-circle"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/involute-of-a-circle"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/involute-of-a-circle</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/involute-of-a-circle"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/involute-of-a-circle"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/involute-of-a-circle"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/parabola</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/parabola"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/parabola"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/parabola"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/parabola</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/parabola"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/parabola"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/parabola"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/ellipse</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/ellipse"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/ellipse"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/ellipse"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/ellipse</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/ellipse"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/ellipse"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/ellipse"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/hyperbola</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/hyperbola"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/hyperbola"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/hyperbola"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/hyperbola</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/hyperbola"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/hyperbola"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/hyperbola"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/sine-wave</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/sine-wave"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/sine-wave"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/sine-wave"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/sine-wave</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/sine-wave"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/sine-wave"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/sine-wave"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/catenary</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/catenary"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/catenary"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/catenary"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/catenary</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/catenary"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/catenary"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/catenary"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/tractrix</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/tractrix"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/tractrix"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/tractrix"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/tractrix</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/tractrix"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/tractrix"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/tractrix"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/witch-of-agnesi</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/witch-of-agnesi"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/witch-of-agnesi"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/witch-of-agnesi"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/witch-of-agnesi</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/witch-of-agnesi"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/witch-of-agnesi"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/witch-of-agnesi"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/curves/folium-of-descartes</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/folium-of-descartes"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/folium-of-descartes"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/folium-of-descartes"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/curves/folium-of-descartes</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/curves/folium-of-descartes"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/curves/folium-of-descartes"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/curves/folium-of-descartes"/>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/pricing</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/pricing"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/pricing"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/pricing"/>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/pricing</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/pricing"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/pricing"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/pricing"/>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://curvg.com/privacy-policy</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/privacy-policy"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/privacy-policy"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/privacy-policy"/>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/privacy-policy</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/privacy-policy"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/privacy-policy"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/privacy-policy"/>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>
  <url>
    <loc>https://curvg.com/terms-of-service</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/terms-of-service"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/terms-of-service"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/terms-of-service"/>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/terms-of-service</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/terms-of-service"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/terms-of-service"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/terms-of-service"/>
    <changefreq>yearly</changefreq>
    <priority>0.3</priority>
  </url>
  <url>
    <loc>https://curvg.com/blog</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/blog"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/blog"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/blog"/>
    <lastmod>2026-08-04T00:00:00.000Z</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/blog</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/blog"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/blog"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/blog"/>
    <lastmod>2026-08-04T00:00:00.000Z</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>
  <url>
    <loc>https://curvg.com/blog/best-math-video-apps</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/blog/best-math-video-apps"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/blog/best-math-video-apps"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/blog/best-math-video-apps"/>
    <lastmod>2026-08-04T00:00:00.000Z</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/blog/best-math-video-apps</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/blog/best-math-video-apps"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/blog/best-math-video-apps"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/blog/best-math-video-apps"/>
    <lastmod>2026-08-04T00:00:00.000Z</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/blog/ai-manim-animation-workflow</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/blog/ai-manim-animation-workflow"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/blog/ai-manim-animation-workflow"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/blog/ai-manim-animation-workflow"/>
    <lastmod>2026-07-28T00:00:00.000Z</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
  <url>
    <loc>https://curvg.com/zh/blog/ai-manim-animation-workflow</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://curvg.com/blog/ai-manim-animation-workflow"/>
    <xhtml:link rel="alternate" hreflang="zh" href="https://curvg.com/zh/blog/ai-manim-animation-workflow"/>
    <xhtml:link rel="alternate" hreflang="x-default" href="https://curvg.com/blog/ai-manim-animation-workflow"/>
    <lastmod>2026-07-28T00:00:00.000Z</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.6</priority>
  </url>
</urlset>
