Method

ACos


Description

Returns the arccosine of the value specified. The arccosine is the angle whose cosine is value. The returned angle is given in radians.

Usage

result = ACos(value)

Part

Type

Description

result

Double

The arc cosine of value.

value

Double

The value you want the arc cosine of.

Notes

The ACos function returns the angle (in radians) of the cosine passed to it. To convert the result from radians to degrees, multiply it by 180/Pi.

Sample code

This example uses the ACos function to return the arc cosine of a number.

Var d As Double
Const Pi = 3.14159265
d = ACos(0.5) ' returns 1.0471976
d = ACos(0.5) * 180 / Pi ' returns 60

Compatibility

All project types on all supported operating systems.

See also

Cos, Tan, Atan functions