diff options
Diffstat (limited to 'sysdeps/ieee754/dbl-64/mpatan.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/mpatan.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/sysdeps/ieee754/dbl-64/mpatan.c b/sysdeps/ieee754/dbl-64/mpatan.c index b10775d..416014b 100644 --- a/sysdeps/ieee754/dbl-64/mpatan.c +++ b/sysdeps/ieee754/dbl-64/mpatan.c @@ -5,9 +5,9 @@ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by - * the Free Software Foundation; either version 2 of the License, or + * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the @@ -15,7 +15,7 @@ * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /******************************************************************/ /* */ @@ -35,36 +35,36 @@ #include "mpa.h" void mpsqrt(mp_no *, mp_no *, int); -void mpatan(mp_no *x, mp_no *y, int p) { +void mpatan(mp_no *x, mp_no *y, int p) { #include "mpatan.h" - + int i,m,n; double dx; mp_no - mpone = {0, 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0, + mpone = {0,{0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0, 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0, - 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,}, - mptwo = {0, 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0, + 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0}}, + mptwo = {0,{0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0, 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0, - 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,}, - mptwoim1 = {0, 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0, + 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0}}, + mptwoim1 = {0,{0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0, 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0, - 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,}; + 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0}}; mp_no mps,mpsm,mpt,mpt1,mpt2,mpt3; - + /* Choose m and initiate mpone, mptwo & mptwoim1 */ if (EX>0) m=7; else if (EX<0) m=0; else { - mp_dbl(x,&dx,p); dx=ABS(dx); - for (m=6; m>0; m--) - {if (dx>xm[m].d) break;} + __mp_dbl(x,&dx,p); dx=ABS(dx); + for (m=6; m>0; m--) + {if (dx>xm[m].d) break;} } mpone.e = mptwo.e = mptwoim1.e = 1; mpone.d[0] = mpone.d[1] = mptwo.d[0] = mptwoim1.d[0] = ONE; mptwo.d[1] = TWO; - + /* Reduce x m times */ mul(x,x,&mpsm,p); if (m==0) cpy(x,&mps,p); @@ -92,10 +92,10 @@ void mpatan(mp_no *x, mp_no *y, int p) { } mul(&mps,&mpt,&mpt1,p); sub(&mps,&mpt1,&mpt,p); - + /* Compute Atan(x) */ mptwoim1.d[1] = twom[m].d; mul(&mptwoim1,&mpt,y,p); - + return; } |