plotly.js 绘图库入门：从零搭建前端数学函数图像

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>plot 绘制图像</title>
</head>
<body>
<div id="tester" style="width:600px;height:250px;"></div>
</body>
<script src="https://cdn.plot.ly/plotly-1.2.0.min.js"></script>
<!-- test -->
<script>
  TESTER = document.getElementById('tester');
  Plotly.plot(TESTER, [{
    x: [1, 2, 3, 4, 5],
    y: [1, 2, 4, 8, 16]
  }], {
    margin: {t: 0}
  });
</script>
</html>

<div id="math-function" style="width:600px;height:250px;"></div>
<script src="https://cdn.plot.ly/plotly-1.2.0.min.js"></script>

<script>
  TESTER = document.getElementById('math-function');

  var x = [], y = [];

  for(var i = -10; i < 10; i += 1) {
    x.push(i);
    y.push(2*i+1);
  }

  Plotly.plot(TESTER, [{
    x: x,
    y: y
  }], {
    margin: {t: 0}
  });
</script>