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Cos Function

Returns a Double specifying the cosine of an angle.

Syntax

Cos( number )

The required number argument is a Double or any valid numeric expression that expresses an angle in radians.

Remarks

The Cos function takes an angle and returns the ratio of two sides of a right triangle. The ratio is the length of the side adjacent to the angle divided by the length of the hypotenuse.

The result lies in the range -1 to 1.

To convert degrees to radians, multiply degrees by pi/180. To convert radians to degrees, multiply radians by 180/pi.

This example uses the Cos function to return the cosine of an angle.

Dim MyAngle, MySecant
MyAngle = 1.3    ' Define angle in radians.
MySecant = 1 / Cos(MyAngle)    ' Calculate secant.


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