COS Function

Purpose:

To return the cosine of the range of x.

Syntax:

COS(x)

Comments:

x must be the radians. COS is the trigonometric cosine function. To convert from degrees to radians, multiply by π/180.

COS(x) is calculated in single precision unless the /d switch is used when GW-BASIC is executed.

Example 1:

10 X=2*COS(.4)
20 PRINT X
RUN
 1.842122

Example 2:

10 PI=3.141593
20 PRINT COS(PI)
30 DEGREES=180
40 RADIANS=DEGREES*PI/180
50 PRINT COS(RADIANS)
RUN
 -1
 -1