Description: | Produces the tangent of X. | ||

Class: | Elemental function; Generic | ||

Arguments: |
X must be of type real. 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 |
---|---|---|

TAN | REAL(4) | REAL(4) |

DTAN | REAL(8) | REAL(8) |

QTAN | REAL(16) | REAL(16) |

**Examples**

TAN (2.0) has the value -2.185040.

TAN (0.8) has the value 1.029639.

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