CLOG(3M) | Mathematical Library Functions | CLOG(3M) |

clog, clogf, clogl - complex natural logarithm functions

c99 [flag... ]file...-lm[library... ] #include <complex.h>double complexclog(double complexz);

float complexclogf(float complexz);

long double complexclogl(long double complexz);

These functions compute the complex natural (base *e*)
logarithm of *z*, with a branch cut along the negative real axis.

These functions return the complex natural logarithm value, in the
range of a strip mathematically unbounded along the real axis and in the
interval [ -*i* , +*i* ] along the imaginary axis.

No errors are defined.

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE | ATTRIBUTE VALUE |

Interface Stability | Standard |

MT-Level | MT-Safe |

July 12, 2006 | SunOS 5.11 |