Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Retrieves the logarithm (base 10) of a complex number.
Syntax
_Dcomplex clog10( _Dcomplex z );
_Fcomplex clog10f( _Fcomplex z );
_Lcomplex clog10l( _Lcomplex z );
_Fcomplex clog10( _Fcomplex z ); // C++ only
_Lcomplex clog10( _Lcomplex z ); // C++ only
Parameters
z
The base of the logarithm.
Return value
The possible return values are:
z parameter |
Return value |
|---|---|
| Positive | The logarithm (base 10) of z |
| Zero | - INF |
| Negative | NaN |
| NaN | NaN |
| + INF | + INF |
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, clog10l |
<complex.h> | <ccomplex> |
For more compatibility information, see Compatibility.
See also
Alphabetical function reference
cexp, cexpf, cexpl
cpow, cpowf, cpowl
clog, clogf, clogl