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 |
|---|---|---|
| COS | REAL(4) | REAL(4) |
| DCOS | REAL(8) | REAL(8) |
| QCOS | REAL(16) | REAL(16) |
| CCOS 1 | COMPLEX(4) | COMPLEX(4) |
| CDCOS 2 | COMPLEX(8) | COMPLEX(8) |
| CQCOS | COMPLEX(16) | COMPLEX(16) |
| 1 The setting of compiler options specifying real size can affect CCOS. 2 This function can also be specified as ZCOS. |
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See Also
Optimizing Applications: Types of Vectorized Loops
Examples
COS (2.0) has the value -0.4161468.
COS (0.567745) has the value 0.8431157.