home *** CD-ROM | disk | FTP | other *** search
/ minnie.tuhs.org / unixen.tar / unixen / PDP-11 / Trees / V7 / usr / src / libF77 / c_log.c < prev    next >
Encoding:
C/C++ Source or Header  |  1979-01-10  |  160 b   |  11 lines
  1. #include "complex"
  2.  
  3. c_log(r, z)
  4. complex *r, *z;
  5. {
  6. double log(), cabs(), atan2();
  7.  
  8. r->imag = atan2(z->imag, z->real);
  9. r->real = log( cabs(z->real, z->imag) );
  10. }
  11.