Intel® Fortran Compiler 17.0 Developer Guide and Reference

COS

Elemental Intrinsic Function (Generic): Produces the cosine of an argument.

result = COS (x)

x

(Input) Must be of type real or complex. It must be in radians and is treated as modulo 2*pi.

If x is of type complex, its real part is regarded as a value in radians.

Results

The result type and kind is the same as x.

Specific Name

Argument Type

Result Type

COS

REAL(4)

REAL(4)

DCOS

REAL(8)

REAL(8)

QCOS

REAL(16)

REAL(16)

CCOS 1

COMPLEX(4)

COMPLEX(4)

CDCOS2

COMPLEX(8)

COMPLEX(8)

CQCOS

COMPLEX(16)

COMPLEX(16)

1The setting of compiler options specifying real size can affect CCOS.

2This function can also be specified as ZCOS.

Example

COS (2.0) has the value -0.4161468.

COS (0.567745) has the value 0.8431157.