COS

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

Syntax

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 is the same as x.

Specific Name Argument Type Result Type
COSREAL(4) REAL(4)
DCOS REAL(8) REAL(8)
QCOS 1 REAL(16) REAL(16)
CCOS 2COMPLEX(4) COMPLEX(4)
CDCOS 3 COMPLEX(8) COMPLEX(8)
CQCOS 1 COMPLEX(16) COMPLEX(16)
1 VMS and U*X
2 The setting of compiler option /real_size can affect CCOS.
3 This function can also be specified as ZCOS.

Examples

COS (2.0) has the value -0.4161468.

COS (0.567745) has the value 0.8431157.