Elemental Intrinsic Function (Generic): Returns the common logarithm of the argument.
Syntax
result = LOG10 (x)
x
(Input) Must be of type real. The value of x must be greater than zero.
Results
The result type is the same as x. The result value is approximately equal to log10x.
| Specific Name | Argument Type | Result Type |
|---|---|---|
| ALOG10 1 | REAL(4) | REAL(4) |
| DLOG10 | REAL(8) | REAL(8) |
| QLOG10 | REAL(16) | REAL(16) |
| 1 This function can also be specified as LOG10. The setting of compiler options specifying real size can affect ALOG10 and LOG10. | ||
See Also
Examples
LOG10 (8.0) has the value 0.9030900.
LOG10 (15.0) has the value 1.176091.
The following shows another example:
REAL r
r = LOG10(10.0) ! returns 1.0