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The latest version of this topic can be found at clog10, clog10f, clog10l.
Retrieves the base 10 logarithm of a complex number.
Syntax
_Dcomplex clog10(
_Dcomplex z
);
_Fcomplex clog10(
_Fcomplex z
); // C++ only
_Lcomplex clog10(
_Lcomplex z
); // C++ only
_Fcomplex clog10f(
_Fcomplex z
);
_Lcomplex clog10l(
_Lcomplex z
);
Parameters
z
The base of the logarithm.
Return Value
The possible return values are:
| z parameter | Return value |
|---|---|
| Positive | The base 10 logarithm of z |
| Zero | - ∞ |
| Negative | NaN |
| NaN | NaN |
| + ∞ | + ∞ |
Remarks
Because C++ allows overloading, you can call overloads of clog10 that take and return _Fcomplex and _Lcomplex values. In a C program, clog10 always takes and returns a _Dcomplex value.
Requirements
| Routine | C header | C++ header |
|---|---|---|
clog10, clog10f, clogl |
<complex.h> | <ccomplex> |
For more compatibility information, see Compatibility in the Introduction.
See Also
Alphabetical Function Reference
cexp, cexpf, cexpl
cpow, cpowf, cpowl
clog, clogf, clogl