Cos
Format
cos ( expression )
Description
Computes the cosine of expression. Expression must be in radians.
Note
The cos function does not produce an exact result.
See Also
Acos, Asin, Atan, Degrees, Radians, Sin, Tan
Example
clg
color black
# draw a line across the graphic output
line 0,150,300,150
# where do we start
lastx = 0
lasty = cos(0) * 50 + 150
# now step across the line and draw
for x = 0 to 300 step 5
angle = x / 300 * 2 * pi
y = cos(angle) * 50 + 150
line lastx, lasty, x, y
lastx = x
lasty = y
next x
Draws