version 1.8, 2005/10/05 08:57:25 |
version 1.9, 2013/02/15 07:05:49 |
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* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* |
* |
* $OpenXM: OpenXM_contrib2/asir2000/parse/puref.c,v 1.7 2004/08/18 00:50:37 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/parse/puref.c,v 1.8 2005/10/05 08:57:25 noro Exp $ |
*/ |
*/ |
#include "ca.h" |
#include "ca.h" |
#include "parse.h" |
#include "parse.h" |
Line 281 void derivr(VL vl,Obj a,V v,Obj *b) |
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Line 281 void derivr(VL vl,Obj a,V v,Obj *b) |
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mulp(vl,(P)dn,(P)dn,(P *)&m); divr(vl,t,m,b); |
mulp(vl,(P)dn,(P)dn,(P *)&m); divr(vl,t,m,b); |
} |
} |
break; |
break; |
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} |
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} |
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void simple_derivr(VL vl,Obj a,V v,Obj *b) |
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{ |
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Obj r,s,t,u,nm,dn; |
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if ( !a || NUM(a) ) |
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*b = 0; |
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else |
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switch ( OID(a) ) { |
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case O_P: |
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pderivr(vl,a,v,b); break; |
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case O_R: |
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nm = (Obj)NM((R)a); dn = (Obj)DN((R)a); |
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/* (nm/dn)' = nm'/dn - dn'/dn*nm/dn */ |
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pderivr(vl,nm,v,&s); divr(vl,s,dn,&u); reductr(vl,u,&t); |
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pderivr(vl,dn,v,&s); divr(vl,s,dn,&u); reductr(vl,u,&s); mulr(vl,s,a,&u); |
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subr(vl,t,u,&s); reductr(vl,s,b); |
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break; |
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default: |
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error("simple_derivr : invalid argument"); |
} |
} |
} |
} |
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