Mathematical Library Functions                           clog(3M)



NAME
     clog, clogf, clogl - complex natural logarithm functions

SYNOPSIS
     c99 [ flag... ] file... -lm [ library... ]
     #include 

     double complex clog(double complex z);


     float complex clogf(float complex z);


     long double complex clogl(long double complex z);


DESCRIPTION
     These functions compute the complex natural (base  e)  loga-
     rithm of z, with a branch cut along the negative real axis.

RETURN VALUES
     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  ima-
     ginary axis.

ERORS
     No errors are defined.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Standard                    
    
     MT-Level                     MT-Safe                     
    


SEE ALSO
     cexp(3M), complex.h(3HEAD), attributes(5), standards(5)









SunOS 5.11          Last change: 12 Jul 2006                    1