touchplot.com - Online plotter and graphing tool About Help
Draw Mouse click on the plot to draw
Pan Hold SHIFT and mouse drag inside the chart area
Zoom Use scroll wheel inside chart area

touchplot is a free online graphing application for drawing data series and plotting math functions.
Click on the graph to draw.

Accepts valid math functions as defined in math.js

Examples:

x
abs(x)
x^3-4*x^2+20*x-9
sin(0.1*x)*cos(0.1*x)
2*e^(0.1*x)
rand(x)
rand(x)*sin(0.1*x)