2D Function Plotter

Scroll: Click and drag.   Stretch: Hold CTRL and drag.
Zoom: Hold SHIFT and drag, or drag another mouse button.

by Ed Mackey, Jan 2010. Updated July 2011. Placed in the public domain.
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y =

Sample functions:
y = sin(x) y = cos(x) y = tan(x) y = x * x
y = asin(x) y = acos(x) y = atan(x) y = pow(x, 3)
y = log(x) y = exp(x) y = x * (x+1) * (x-2) y = pow(cos(x*pi), 7)