SQRT (The GNU Fortran Compiler) (original) (raw)
8.260 SQRT — Square-root function ¶
Synopsis:
RESULT = SQRT(X)
Description:
SQRT(X) computes the square root of X.
Class:
Elemental function
Arguments:
| X | The type shall be REAL orCOMPLEX. |
|---|
Return value:
The return value is of type REAL or COMPLEX. The kind type parameter is the same as X.
Example:
program test_sqrt real(8) :: x = 2.0_8 complex :: z = (1.0, 2.0) x = sqrt(x) z = sqrt(z) end program test_sqrt
Specific names:
| Name | Argument | Return type | Standard |
|---|---|---|---|
| SQRT(X) | REAL(4) X | REAL(4) | Fortran 77 and later |
| DSQRT(X) | REAL(8) X | REAL(8) | Fortran 77 and later |
| CSQRT(X) | COMPLEX(4) X | COMPLEX(4) | Fortran 77 and later |
| ZSQRT(X) | COMPLEX(8) X | COMPLEX(8) | GNU extension |
| CDSQRT(X) | COMPLEX(8) X | COMPLEX(8) | GNU extension |
Standard:
Fortran 77 and later