## 9.3.30 COTAN (X)

Description: | Produces the cotangent of X.
Class: | Elemental function; Generic
Arguments: | X must be of type real; it cannot be zero. It must be in radians and is treated as modulo 2*pi.
Results: | The result type is the same as X.

Specific Name | Argument Type | Result Type
--- | --- | ---
COTAN | REAL(4) | REAL(4)
DCOTAN | REAL(8) | REAL(8)
QCOTAN | REAL(16) | REAL(16)

Examples

COTAN (2.0) has the value -4.576575E-01.

COTAN (0.6) has the value 1.461696.

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