Johns Hope's FPlot function plotter

Examples:    

1D function     2D function     Color function

double f(double x) {
     return 0;
}

Display Range:

x0:     x1:
y0:     y1:
z0:     z1:
Fix x-range to y-range

Options:

Use Rainbow colors
Show grid
Show axis

Function image:

You can zoom in by dragging on the image with the left mouse button. If you additionally press the shift key you can also zoom out.