| 146 | } |
| 147 | |
| 148 | inline Rcomplex complex__acos(Rcomplex z) |
| 149 | { |
| 150 | Rcomplex r, Asin = complex__asin(z); |
| 151 | r.r = M_PI_2 - Asin.r; |
| 152 | r.i = - Asin.i; |
| 153 | return r ; |
| 154 | } |
| 155 | |
| 156 | /* Complex Arctangent Function */ |
| 157 | /* Equation (4.4.39) Abramowitz and Stegun */ |
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