ATAND
— Arctangent function, degrees ¶RESULT = ATAND(X) |
RESULT = ATAND(Y, X) |
ATAND(X)
computes the arctangent of X in degrees (inverse of
TAND
— Tangent function, degrees).
Elemental function
X | The type shall be REAL . |
Y | The type and kind type parameter shall be the same as X. |
The return value is of the same type and kind as X.
If Y is present, the result is identical to ATAN2D(Y, X)
.
Otherwise, the result is in degrees and lies in the range
-90 \leq \atand(x) \leq 90.
program test_atand real(8) :: x = 2.866_8 real(4) :: x1 = 1.e0_4, y1 = 0.5e0_4 x = atand(x) x1 = atand(y1, x1) end program test_atand
Name | Argument | Return type | Standard |
---|---|---|---|
ATAND(X) | REAL(4) X | REAL(4) | Fortran 2023 |
DATAND(X) | REAL(8) X | REAL(8) | GNU extension |
Fortran 2023
Inverse function:
TAND
— Tangent function, degrees
Radians function:
ATAN
— Arctangent function