XL Fortran for AIX 8.1
Language Reference
Square root.
- X
- must be of type real or complex. Unless X is complex, its value
must be greater than or equal to zero.
Class
Elemental function
Result Type and Attributes
Same as X.
Result Value
- It has a value equal to the square root of X.
- If the result type is complex, its value is the principal value with the
real part greater than or equal to zero. If the real part is zero, the
imaginary part is greater than or equal to zero.
Examples
SQRT (4.0) has the value 2.0.
| Specific Name
| Argument Type
| Result Type
| Pass As Arg?
|
| SQRT
| default real
| default real
| yes
|
| DSQRT
| double precision real
| double precision real
| yes
|
| QSQRT
| REAL(16)
| REAL(16)
| yes (1)
|
| CSQRT (2)
| default complex
| default complex
| yes
|
| CDSQRT (2)
| double complex
| double complex
| yes (1)
|
| ZSQRT (2)
| COMPLEX(8)
| COMPLEX(8)
| yes (1)
|
| CQSQRT (2)
| COMPLEX(16)
| COMPLEX(16)
| yes (1)
|
Notes:
- IBM Extension: the ability to pass the name as an argument.
- Given that X is a complex number in the form a + bi, where
i = (-1)½, abs(X) + abs(a) must be less than or
equal to 1.797693 * 10308.
[ Top of Page | Previous Page | Next Page | Table of Contents | Index ]