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C/C++ Source or Header  |  1992-11-09  |  269 b   |  15 lines
  1. #include "f2c.h"
  2.  
  3. #ifdef KR_headers
  4. double sin(), cos(), sinh(), cosh();
  5. VOID z_cos(r, z) doublecomplex *r, *z;
  6. #else
  7. #undef abs
  8. #include "math.h"
  9. void z_cos(doublecomplex *r, doublecomplex *z)
  10. #endif
  11. {
  12. r->r = cos(z->r) * cosh(z->i);
  13. r->i = - sin(z->r) * sinh(z->i);
  14. }
  15.