Last change
on this file since 373 was 352, checked in by coas-nagasima, 6 years ago |
arm向けASP3版ECNLを追加
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File size:
265 bytes
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[352] | 1 | #include "libm.h"
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| 2 |
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| 3 | // FIXME
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| 4 |
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| 5 | /* asin(z) = -i log(i z + sqrt(1 - z*z)) */
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| 6 |
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| 7 | double complex casin(double complex z)
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| 8 | {
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| 9 | double complex w;
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| 10 | double x, y;
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| 11 |
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| 12 | x = creal(z);
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| 13 | y = cimag(z);
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| 14 | w = CMPLX(1.0 - (x - y)*(x + y), -2.0*x*y);
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| 15 | return clog(CMPLX(-y, x) + csqrt(w));
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| 16 | }
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