Demonstrates Euler's method with 50 steps and user-controlled initial value and [math]\Delta x[/math].[br][br][b]Controls[/b][br][list][br][*]Drag the point A to change the initial condition.[br][/*][*]Edit f(x, y) to try different differential equations.[br][/*][*]Drag the slider [math]\Delta x[/math] to change the "step size".[br][/*][/list]