TAN — Tangent function#

TAN(X)#

TAN(X) computes the tangent of X.

Parameters:: X – The type shall be REAL or COMPLEX.
Returns:: The return value has same type and kind as X, and its value is in radians.

Standard:

Fortran 77 and later, for a complex argument Fortran 2008 or later

Class:

Elemental function

Syntax:

RESULT = TAN(X)

Example:

program test_tan
  real(8) :: x = 0.165_8
  x = tan(x)
end program test_tan

Specific names:

Name	Argument	Return type	Standard
`TAN(X)`	`REAL(4) X`	`REAL(4)`	Fortran 77 and later
`DTAN(X)`	`REAL(8) X`	`REAL(8)`	Fortran 77 and later

See also:

Inverse function: ATAN Degrees function: TAND