< Futurebasic < Language < Reference
COS function
COS
Function
✔ Appearance ✔ Standard ✔ Console
Syntax
theCosine# = COS(expr)
Description
Returns the cosine of expr, where expr is given in radians. The returned value will be in the range -1 to +1. COS always returns a double-precision result.
Note:
To find the cosine of an angle degAngle which is given in degrees, use the following:
theCosine# = COS(degAngle * pi# / 180)
where pi# equals 3.14159265359
See Also
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