plot.js

plot.js is a canvas based, one function, no dependency library to create plots of functions by Alexandre Stanislawski (@bobylito) under MIT licence. The code can be found on github and the documentation is there.

Samples :

jsPlot(
  "plotHere", 
  {
    Xmin : -5,
    Xmax : 5,
    Ymin : -5,
    Ymax : 5,
    canvasHeight : 250,
    canvasWidth : 250
  },
  [function x(x){return x}, 
   function x2(x){return x*x}]
);

jsPlot(
  "plotThere", 
  {
    Xmin : -5,
    Xmax : 5,
    Ymin : -5,
    Ymax : 5,
    canvasHeight : 250,
    canvasWidth : 250, 
    gridVisible : false
  },
  [function x3(x){
      return x*x*x
   },
   function q(x){return 1/x}]
);

var f1 = function x3(x){ return x*x*x }, 
    f2 = function q(x){ return x * Math.cos(x) }
f1.color="#F00"
f2.color="#00B"
jsPlot(
  "plotColors", 
  {
    Xmin : -10,
    Xmax : 10,
    Ymin : -10,
    Ymax : 10,
    canvasHeight : 500,
    canvasWidth : 500, 
    gridVisible : false
  },
  [f1, f2]
);