Elemental Intrinsic Function (Generic): Produces the tangent of x.
Syntax
result = TAN (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 |
|---|---|---|
| TAN | REAL(4) | REAL(4) |
| DTAN | REAL(8) | REAL(8) |
| QTAN | REAL(16) | REAL(16) |
| CTAN 1 | COMPLEX(4) | COMPLEX(4) |
| CDTAN 2 | COMPLEX(8) | COMPLEX(8) |
| CQTAN | COMPLEX(16) | COMPLEX(16) |
| 1 The setting of compiler options specifying real size can affect CTAN. 2 This function can also be specified as ZTAN. |
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Examples
TAN (2.0) has the value -2.185040.
TAN (0.8) has the value 1.029639.