gsl_sf_elljac.h 1.3 KB

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  1. /* specfunc/gsl_sf_elljac.h
  2. *
  3. * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman
  4. *
  5. * This program is free software; you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License as published by
  7. * the Free Software Foundation; either version 3 of the License, or (at
  8. * your option) any later version.
  9. *
  10. * This program is distributed in the hope that it will be useful, but
  11. * WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13. * General Public License for more details.
  14. *
  15. * You should have received a copy of the GNU General Public License
  16. * along with this program; if not, write to the Free Software
  17. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18. */
  19. /* Author: G. Jungman */
  20. #ifndef __GSL_SF_ELLJAC_H__
  21. #define __GSL_SF_ELLJAC_H__
  22. #undef __BEGIN_DECLS
  23. #undef __END_DECLS
  24. #ifdef __cplusplus
  25. # define __BEGIN_DECLS extern "C" {
  26. # define __END_DECLS }
  27. #else
  28. # define __BEGIN_DECLS /* empty */
  29. # define __END_DECLS /* empty */
  30. #endif
  31. __BEGIN_DECLS
  32. /* Jacobian elliptic functions sn, dn, cn,
  33. * by descending Landen transformations
  34. *
  35. * exceptions: GSL_EDOM
  36. */
  37. int gsl_sf_elljac_e(double u, double m, double * sn, double * cn, double * dn);
  38. __END_DECLS
  39. #endif /* __GSL_SF_ELLJAC_H__ */