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Text File  |  1975-07-17  |  205 b   |  14 lines
  1.     function ccos(z1)
  2.     complex ccos, z1, z2
  3.     dimension dummy(2)
  4.     equivalence (a,z2,dummy(1)), (b,dummy(2))
  5.  
  6.     z2 = z1
  7.     c = exp(b)
  8.     d = 1.0/c
  9.     b = sin(a)*(d-c)/2.0
  10.     a = cos(a)*(c+d)/2.0
  11.     ccos = z2
  12.     return
  13.     end
  14.