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SQRT — Square-root functionSQRT(X) computes the square root of X.
Fortran 77 and later
Elemental function
RESULT = SQRT(X)
| X | The type shall be REALorCOMPLEX. | 
The return value is of type REAL or COMPLEX.
The kind type parameter is the same as X.
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
| Name | Argument | Return type | Standard | 
| SQRT(X) | REAL(4) X | REAL(4) | Fortran 95 and later | 
| DSQRT(X) | REAL(8) X | REAL(8) | Fortran 95 and later | 
| CSQRT(X) | COMPLEX(4) X | COMPLEX(4) | Fortran 95 and later | 
| ZSQRT(X) | COMPLEX(8) X | COMPLEX(8) | GNU extension | 
| CDSQRT(X) | COMPLEX(8) X | COMPLEX(8) | GNU extension |