Purpose
Returns the cosine of a number. You can call this function from the MapBasic window in MapInfo Pro.
Syntax
Cos( num_expr ) num_expr is a numeric expression representing an angle in radians.
Return Value
Float
Description
The Cos() function returns the cosine of the numeric num_expr value, which represents an angle in radians. The result returned from Cos() is between one (1) and negative one (-1).
To convert a degree value to radians, multiply that value by DEG_2_RAD. To convert a radian value into degrees, multiply that value by RAD_2_DEG.
Note: Your program must Include "MAPBASIC.DEF" to reference DEG_2_RAD or RAD_2_DEG.
Example
Include "MAPBASIC.DEF"
Dim x, y As Float
x = 60 * DEG_2_RAD
y = Cos(x)
' y will now be equal to 0.5
' since the cosine of 60 degrees is 0.5 See Also:
Acos() function, Asin() function, Atn() function, Sin() function, Tan() function