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Annotation of researchv10no/libF77/z_log.c, revision 1.1.1.1

1.1       root        1: #include "f2c.h"
                      2: 
                      3: #ifdef KR_headers
                      4: double log(), f__cabs(), atan2();
                      5: VOID z_log(r, z) doublecomplex *r, *z;
                      6: #else
                      7: #undef abs
                      8: #include "math.h"
                      9: extern double f__cabs(double, double);
                     10: void z_log(doublecomplex *r, doublecomplex *z)
                     11: #endif
                     12: {
                     13: 
                     14: r->i = atan2(z->i, z->r);
                     15: r->r = log( f__cabs( z->r, z->i ) );
                     16: }

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