ACOS (return arccosine)

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ACOS(expression)

ACOS

Returns inverse cosine.

expression

A numeric constant, variable, or expression for the value of the cosine.

The ACOS procedure returns the inverse cosine. The inverse of a cosine is the angle that produces the cosine. The return value is the angle in radians. p is a constant which represents the ratio of the circumference and radius of a circle. There are 2p radians (or 360 degrees) in a circle.

Return Data Type:

REAL

Example:

PI       EQUATE(3.1415926535898)     !The value of PI

Rad2Deg  EQUATE(57.295779513082)     !Number of degrees in a radian

Deg2Rad  EQUATE(0.0174532925199)     !Number of radians in a degree

CODE

InvCosine = ACOS(CosineAngle)       !Get the Arccosine

See Also:

TAN

ATAN

SIN

ASIN

COS