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Annotation of 43BSDTahoe/usr.lib/libF77/z_log.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1980 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)z_log.c     5.2     11/3/86
                      7:  */
                      8: 
                      9: #include "complex"
                     10: #ifdef tahoe
                     11: #define cabs zabs
                     12: #endif tahoe
                     13: 
                     14: z_log(r, z)
                     15: dcomplex *r, *z;
                     16: {
                     17: double log(), cabs(), atan2();
                     18: 
                     19: r->dimag = atan2(z->dimag, z->dreal);
                     20: r->dreal = log( cabs( z->dreal, z->dimag ) );
                     21: }

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