Casio Reckon User Manual page 10

1,2,3
( and )
.
Further examples
Plot3D(X^2+Y^2,-2,2)
Plot3D(Sin(x)-Cos(y),0,5)
Plot3D(Sin(X)^2-Cos(Y)^2,0,5)
Free spin about models local Z axis. Hit 1 to speed
up left, 3 for right, 2 to stop spinning
Expand/Contract X & Y scale
Increase detail