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C/C++ Source or Header  |  1979-01-10  |  179 b   |  11 lines
  1. #include "complex"
  2.  
  3. z_cos(r, z)
  4. dcomplex *r, *z;
  5. {
  6. double sin(), cos(), sinh(), cosh();
  7.  
  8. r->dreal = cos(z->dreal) * cosh(z->dimag);
  9. r->dimag = - sin(z->dreal) * sinh(z->dimag);
  10. }
  11.