-- To plot an expression, specify the range of X values and an expression for Y. Clicking the mouse on the plot will show the trace number and the X,Y value of the plotted point nearest to the click.

 Xmin=-10
 Xmax=10
 plot X^2

-- The plot command steps the special variable X (upper case) between Xmin and Xmax and plots the resulting values. Aribtrary expressions can be built using variables and/or functions.

 y = t^3
 t = X
 plot y

 f(u) = -u^3
 plot f(X)

-- You can control the range of Y values shown by setting Ymin and Ymax. If Ymin and Ymax are not specified, MathPad will auto range.

 Ymin=-500;  Ymax=500