This is a Visual Basic program that can plot the path of a projectile, the basic concept of missile launching.
This path is determined by the launching angle and
speed. The formula is y=(Vsin a) t- 1/2(gt^{2}) and x=(Vcosa)t, where
V=launching speed and a is the launching angle, g is acceleration due to
gravity(9.8n ms^{-2}) while t is time.

In this program, we use a picture box for drawing the curve . The command **Pset** is used to plot the
curve. Pset is a method that draw a point on the screen. Using loop such as the do loop will connect all the points into a line.