A glowing pen dot travels along the curve as it draws
A flowing glow trail follows the pen like ink drying
Tiny sparkles burst from the tip as it moves
The canvas glows brighter during drawing
Click again to stop mid-draw
All 6 graph types included:
? Cartesian — y = f(x), like sin(x), x², tan(x)
? Parametric — x(t) and y(t) curves, Lissajous figures
? Polar — r = f(?), rose curves, spirals
? Implicit — f(x,y) = 0, circles, ellipses
? Derivative — draws d/dx with the original faint beneath
? Integral — shaded area + animated curve