version 1.75, 2005/10/15 01:10:15 |
version 1.83, 2005/10/26 10:44:50 |
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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/builtin/strobj.c,v 1.74 2005/10/14 07:49:21 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/builtin/strobj.c,v 1.82 2005/10/26 08:39:58 noro Exp $ |
*/ |
*/ |
#include "ca.h" |
#include "ca.h" |
#include "parse.h" |
#include "parse.h" |
Line 64 struct TeXSymbol { |
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Line 64 struct TeXSymbol { |
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}; |
}; |
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#define OPNAME(f) (((ARF)FA0(f))->name[0]) |
#define OPNAME(f) (((ARF)FA0(f))->name[0]) |
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#define IS_ZERO(f) (((f)->id==I_FORMULA) && FA0(f)==0 ) |
#define IS_BINARYPWR(f) (((f)->id==I_BOP) &&(OPNAME(f)=='^')) |
#define IS_BINARYPWR(f) (((f)->id==I_BOP) &&(OPNAME(f)=='^')) |
#define IS_NARYADD(f) (((f)->id==I_NARYOP) &&(OPNAME(f)=='+')) |
#define IS_NARYADD(f) (((f)->id==I_NARYOP) &&(OPNAME(f)=='+')) |
#define IS_NARYMUL(f) (((f)->id==I_NARYOP) &&(OPNAME(f)=='*')) |
#define IS_NARYMUL(f) (((f)->id==I_NARYOP) &&(OPNAME(f)=='*')) |
Line 86 void Pflatten_quote(); |
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Line 87 void Pflatten_quote(); |
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void Pquote_is_integer(),Pquote_is_rational(),Pquote_is_number(); |
void Pquote_is_integer(),Pquote_is_rational(),Pquote_is_number(); |
void Pquote_is_dependent(),Pquote_is_function(); |
void Pquote_is_dependent(),Pquote_is_function(); |
void Pquote_normalize(); |
void Pquote_normalize(); |
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void Pquote_normalize_comp(); |
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void Pquote_to_funargs(),Pfunargs_to_quote(),Pget_function_name(); |
void Pquote_to_funargs(),Pfunargs_to_quote(),Pget_function_name(); |
void Pquote_unify(),Pget_quote_id(),Pquote_match_rewrite(); |
void Pquote_unify(),Pget_quote_id(),Pquote_match_rewrite(); |
Line 124 struct ftab str_tab[] = { |
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Line 126 struct ftab str_tab[] = { |
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{"quote_is_function",Pquote_is_function,1}, |
{"quote_is_function",Pquote_is_function,1}, |
{"quote_is_dependent",Pquote_is_dependent,2}, |
{"quote_is_dependent",Pquote_is_dependent,2}, |
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{"quote_normalize",Pquote_normalize,1}, |
{"quote_normalize",Pquote_normalize,-2}, |
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{"quote_normalize_comp",Pquote_normalize_comp,2,0x3}, |
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{"quote_to_nary",Pquote_to_nary,1}, |
{"quote_to_nary",Pquote_to_nary,1}, |
{"quote_to_bin",Pquote_to_bin,2}, |
{"quote_to_bin",Pquote_to_bin,2}, |
Line 533 void Pwrite_to_tb(NODE arg,Q *rp) |
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Line 536 void Pwrite_to_tb(NODE arg,Q *rp) |
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} |
} |
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FNODE partial_eval(FNODE), fnode_to_nary(FNODE), fnode_to_bin(FNODE,int); |
FNODE partial_eval(FNODE), fnode_to_nary(FNODE), fnode_to_bin(FNODE,int); |
FNODE fnode_normalize(FNODE); |
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void Pquote_to_nary(NODE arg,QUOTE *rp) |
void Pquote_to_nary(NODE arg,QUOTE *rp) |
{ |
{ |
Line 663 void Pquote_match_rewrite(NODE arg,Obj *rp) |
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Line 665 void Pquote_match_rewrite(NODE arg,Obj *rp) |
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NEXTNODE(s0,s); |
NEXTNODE(s0,s); |
pair = BDY((LIST)BDY(t)); |
pair = BDY((LIST)BDY(t)); |
ind = (int)FA0((FNODE)BDY((QUOTE)BDY(pair))); |
ind = (int)FA0((FNODE)BDY((QUOTE)BDY(pair))); |
value = mkfnode(1,I_FORMULA,BDY(NEXT(pair))); |
value = BDY((QUOTE)(BDY(NEXT(pair)))); |
BDY(s) = mknode(2,ind,value); |
BDY(s) = mknode(2,ind,value); |
} |
} |
if ( s0 ) NEXT(s) = 0; |
if ( s0 ) NEXT(s) = 0; |
switch ( ac = argc(arg) ) { |
switch ( ac = argc(arg) ) { |
case 3: |
case 3: |
h = rewrite_fnode(BDY((QUOTE)ARG2(arg)),s0); |
h = rewrite_fnode(BDY((QUOTE)ARG2(arg)),s0); |
*rp = eval(h); |
MKQUOTE(q,h); *rp = (Obj)q; |
break; |
break; |
case 4: |
case 4: |
c = rewrite_fnode(BDY((QUOTE)ARG2(arg)),s0); |
c = rewrite_fnode(BDY((QUOTE)ARG2(arg)),s0); |
if ( eval(c) ) { |
if ( eval(c) ) { |
h = rewrite_fnode(BDY((QUOTE)ARG3(arg)),s0); |
h = rewrite_fnode(BDY((QUOTE)ARG3(arg)),s0); |
*rp = eval(h); |
MKQUOTE(q,h); *rp = (Obj)q; |
} else |
} else |
*rp = VOIDobj; |
*rp = VOIDobj; |
break; |
break; |
Line 1924 void Pfunargs_to_quote(NODE arg,QUOTE *rp) |
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Line 1926 void Pfunargs_to_quote(NODE arg,QUOTE *rp) |
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MKQUOTE(*rp,f); |
MKQUOTE(*rp,f); |
} |
} |
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FNODE fnode_apply(FNODE f,FNODE (*func)()); |
FNODE fnode_apply(FNODE f,FNODE (*func)(),int expand); |
FNODE fnode_normalize(FNODE f); |
FNODE fnode_normalize(FNODE f,int expand); |
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void Pquote_normalize(NODE arg,QUOTE *rp) |
void Pquote_normalize(NODE arg,QUOTE *rp) |
{ |
{ |
QUOTE q,r; |
QUOTE q,r; |
FNODE f; |
FNODE f; |
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int expand,ac; |
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ac = argc(arg); |
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if ( !ac ) error("quote_normalize : invalid argument"); |
q = (QUOTE)ARG0(arg); |
q = (QUOTE)ARG0(arg); |
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expand = ac==2 && ARG1(arg); |
if ( !q || OID(q) != O_QUOTE ) { |
if ( !q || OID(q) != O_QUOTE ) { |
*rp = q; |
*rp = q; |
return; |
return; |
} else { |
} else { |
f = fnode_normalize(BDY(q)); |
f = fnode_normalize(BDY(q),expand); |
MKQUOTE(r,f); |
MKQUOTE(r,f); |
*rp = r; |
*rp = r; |
} |
} |
} |
} |
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void Pquote_normalize_comp(NODE arg,Q *rp) |
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{ |
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FNODE f1,f2; |
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int r; |
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f1 = BDY((QUOTE)ARG0(arg)); |
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f2 = BDY((QUOTE)ARG1(arg)); |
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f1 = fnode_normalize(f1,0); |
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f2 = fnode_normalize(f2,0); |
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r = fnode_normalize_comp(f1,f2); |
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STOQ(r,*rp); |
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} |
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int fnode_is_number(FNODE f) |
int fnode_is_number(FNODE f) |
{ |
{ |
Obj obj; |
Obj obj; |
Line 2028 int fnode_is_integer(FNODE f) |
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Line 2047 int fnode_is_integer(FNODE f) |
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} |
} |
} |
} |
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int fnode_is_zero(FNODE f) |
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{ |
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Q n; |
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n = eval(f); |
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if ( !n ) return 1; |
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else return 0; |
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} |
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int fnode_is_nonnegative_integer(FNODE f) |
int fnode_is_nonnegative_integer(FNODE f) |
{ |
{ |
Q n; |
Q n; |
Line 2096 int fnode_is_dependent(FNODE f,V v) |
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Line 2106 int fnode_is_dependent(FNODE f,V v) |
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} |
} |
} |
} |
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FNODE fnode_normalize_add(FNODE a1,FNODE a2); |
FNODE fnode_normalize_add(FNODE a1,FNODE a2,int expand); |
FNODE fnode_normalize_mul(FNODE a1,FNODE a2); |
FNODE fnode_normalize_mul(FNODE a1,FNODE a2,int expand); |
FNODE fnode_normalize_pwr(FNODE a1,FNODE a2); |
FNODE fnode_normalize_pwr(FNODE a1,FNODE a2,int expand); |
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FNODE fnode_normalize_mul_coef(Num c,FNODE f,int expand); |
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FNODE fnode_expand_pwr(FNODE f,int n); |
FNODE to_narymul(FNODE f); |
FNODE to_narymul(FNODE f); |
FNODE to_naryadd(FNODE f); |
FNODE to_naryadd(FNODE f); |
FNODE fnode_node_to_naryadd(NODE n); |
FNODE fnode_node_to_naryadd(NODE n); |
FNODE fnode_node_to_narymul(NODE n); |
FNODE fnode_node_to_narymul(NODE n); |
FNODE fnode_normalize_mul_coef(Num c,FNODE f); |
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void fnode_base_exp(FNODE f,FNODE *bp,FNODE *ep); |
void fnode_base_exp(FNODE f,FNODE *bp,FNODE *ep); |
void fnode_coef_body(FNODE f,Num *cp,FNODE *bp); |
void fnode_coef_body(FNODE f,Num *cp,FNODE *bp); |
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FNODE fnode_normalize(FNODE f) |
FNODE fnode_normalize(FNODE f,int expand) |
{ |
{ |
FNODE a1,a2,mone,r,b2; |
FNODE a1,a2,mone,r,b2; |
NODE n; |
NODE n; |
Line 2118 FNODE fnode_normalize(FNODE f) |
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Line 2129 FNODE fnode_normalize(FNODE f) |
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mone = mkfnode(1,I_FORMULA,q); |
mone = mkfnode(1,I_FORMULA,q); |
switch ( f->id ) { |
switch ( f->id ) { |
case I_PAREN: |
case I_PAREN: |
return fnode_normalize(FA0(f)); |
return fnode_normalize(FA0(f),expand); |
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case I_MINUS: |
case I_MINUS: |
return fnode_normalize_mul_coef((Num)q,fnode_normalize(FA0(f))); |
return fnode_normalize_mul_coef((Num)q, |
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fnode_normalize(FA0(f),expand),expand); |
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case I_BOP: |
case I_BOP: |
/* arf fnode fnode */ |
/* arf fnode fnode */ |
a1 = fnode_normalize(FA1(f)); |
a1 = fnode_normalize(FA1(f),expand); |
a2 = fnode_normalize(FA2(f)); |
a2 = fnode_normalize(FA2(f),expand); |
switch ( OPNAME(f) ) { |
switch ( OPNAME(f) ) { |
case '+': |
case '+': |
return fnode_normalize_add(a1,a2); |
return fnode_normalize_add(a1,a2,expand); |
case '-': |
case '-': |
a2 = fnode_normalize_mul_coef((Num)q,a2); |
a2 = fnode_normalize_mul_coef((Num)q,a2,expand); |
return fnode_normalize_add(a1,a2); |
return fnode_normalize_add(a1,a2,expand); |
case '*': |
case '*': |
return fnode_normalize_mul(a1,a2); |
return fnode_normalize_mul(a1,a2,expand); |
case '/': |
case '/': |
a2 = fnode_normalize_pwr(a2,mone); |
a2 = fnode_normalize_pwr(a2,mone,expand); |
return fnode_normalize_mul(a1,a2); |
return fnode_normalize_mul(a1,a2,expand); |
case '^': |
case '^': |
return fnode_normalize_pwr(a1,a2); |
return fnode_normalize_pwr(a1,a2,expand); |
default: |
default: |
return mkfnode(3,I_BOP,FA0(f),a1,a2); |
return mkfnode(3,I_BOP,FA0(f),a1,a2); |
} |
} |
Line 2149 FNODE fnode_normalize(FNODE f) |
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Line 2161 FNODE fnode_normalize(FNODE f) |
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switch ( OPNAME(f) ) { |
switch ( OPNAME(f) ) { |
case '+': |
case '+': |
n = (NODE)FA1(f); |
n = (NODE)FA1(f); |
r = fnode_normalize(BDY(n)); n = NEXT(n); |
r = fnode_normalize(BDY(n),expand); n = NEXT(n); |
for ( ; n; n = NEXT(n) ) { |
for ( ; n; n = NEXT(n) ) { |
a1 = fnode_normalize(BDY(n)); |
a1 = fnode_normalize(BDY(n),expand); |
r = fnode_normalize_add(r,a1); |
r = fnode_normalize_add(r,a1,expand); |
} |
} |
return r; |
return r; |
case '*': |
case '*': |
n = (NODE)FA1(f); |
n = (NODE)FA1(f); |
r = fnode_normalize(BDY(n)); n = NEXT(n); |
r = fnode_normalize(BDY(n),expand); n = NEXT(n); |
for ( ; n; n = NEXT(n) ) { |
for ( ; n; n = NEXT(n) ) { |
a1 = fnode_normalize(BDY(n)); |
a1 = fnode_normalize(BDY(n),expand); |
r = fnode_normalize_mul(r,a1); |
r = fnode_normalize_mul(r,a1,expand); |
} |
} |
return r; |
return r; |
default: |
default: |
Line 2168 FNODE fnode_normalize(FNODE f) |
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Line 2180 FNODE fnode_normalize(FNODE f) |
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} |
} |
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default: |
default: |
return fnode_apply(f,fnode_normalize); |
return fnode_apply(f,fnode_normalize,expand); |
} |
} |
} |
} |
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FNODE fnode_apply(FNODE f,FNODE (*func)()) |
FNODE fnode_apply(FNODE f,FNODE (*func)(),int expand) |
{ |
{ |
fid_spec_p spec; |
fid_spec_p spec; |
FNODE r; |
FNODE r; |
Line 2185 FNODE fnode_apply(FNODE f,FNODE (*func)()) |
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Line 2197 FNODE fnode_apply(FNODE f,FNODE (*func)()) |
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for ( i = 0; i < n; i++ ) { |
for ( i = 0; i < n; i++ ) { |
switch ( spec->type[i] ) { |
switch ( spec->type[i] ) { |
case A_fnode: |
case A_fnode: |
r->arg[i] = func(f->arg[i]); |
r->arg[i] = func(f->arg[i],expand); |
break; |
break; |
case A_node: |
case A_node: |
s = (NODE)f->arg[i]; |
s = (NODE)f->arg[i]; |
for ( t0 = 0; s; s = NEXT(s) ) { |
for ( t0 = 0; s; s = NEXT(s) ) { |
NEXTNODE(t0,t); |
NEXTNODE(t0,t); |
BDY(t) = (pointer)func((FNODE)BDY(s)); |
BDY(t) = (pointer)func((FNODE)BDY(s),expand); |
} |
} |
if ( t0 ) NEXT(t) = 0; |
if ( t0 ) NEXT(t) = 0; |
r->arg[i] = t0; |
r->arg[i] = t0; |
Line 2204 FNODE fnode_apply(FNODE f,FNODE (*func)()) |
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Line 2216 FNODE fnode_apply(FNODE f,FNODE (*func)()) |
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return r; |
return r; |
} |
} |
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FNODE fnode_normalize_add(FNODE f1,FNODE f2) |
FNODE fnode_normalize_add(FNODE f1,FNODE f2,int expand) |
{ |
{ |
NODE n1,n2,r0,r; |
NODE n1,n2,r0,r; |
FNODE b1,b2; |
FNODE b1,b2; |
int s; |
int s; |
Num c1,c2,c; |
Num c1,c2,c; |
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if ( fnode_is_zero(f1) ) return f2; |
if ( IS_ZERO(f1) ) return f2; |
else if ( fnode_is_zero(f2) ) return f1; |
else if ( IS_ZERO(f2) ) return f1; |
f1 = to_naryadd(f1); f2 = to_naryadd(f2); |
f1 = to_naryadd(f1); f2 = to_naryadd(f2); |
n1 = (NODE)FA1(f1); n2 = (NODE)FA1(f2); |
n1 = (NODE)FA1(f1); n2 = (NODE)FA1(f2); |
r0 = 0; |
r0 = 0; |
while ( n1 && n2 ) { |
while ( n1 && n2 ) { |
fnode_coef_body(BDY(n1),&c1,&b1); fnode_coef_body(BDY(n2),&c2,&b2); |
fnode_coef_body(BDY(n1),&c1,&b1); fnode_coef_body(BDY(n2),&c2,&b2); |
if ( (s = compfnode(b1,b2)) > 0 ) { |
if ( (s = fnode_normalize_comp(b1,b2)) > 0 ) { |
NEXTNODE(r0,r); BDY(r) = BDY(n1); n1 = NEXT(n1); |
NEXTNODE(r0,r); BDY(r) = BDY(n1); n1 = NEXT(n1); |
} else if ( s < 0 ) { |
} else if ( s < 0 ) { |
NEXTNODE(r0,r); BDY(r) = BDY(n2); n2 = NEXT(n2); |
NEXTNODE(r0,r); BDY(r) = BDY(n2); n2 = NEXT(n2); |
} else { |
} else { |
addnum(0,c1,c2,&c); |
addnum(0,c1,c2,&c); |
if ( c ) { |
if ( c ) { |
NEXTNODE(r0,r); BDY(r) = fnode_normalize_mul_coef(c,b1); |
NEXTNODE(r0,r); BDY(r) = fnode_normalize_mul_coef(c,b1,expand); |
} |
} |
n1 = NEXT(n1); n2 = NEXT(n2); |
n1 = NEXT(n1); n2 = NEXT(n2); |
} |
} |
Line 2256 FNODE fnode_node_to_narymul(NODE n) |
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Line 2268 FNODE fnode_node_to_narymul(NODE n) |
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else return mkfnode(2,I_NARYOP,mulfs,n); |
else return mkfnode(2,I_NARYOP,mulfs,n); |
} |
} |
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FNODE fnode_normalize_mul(FNODE f1,FNODE f2) |
FNODE fnode_normalize_mul(FNODE f1,FNODE f2,int expand) |
{ |
{ |
NODE n1,n2,r0,r,r1; |
NODE n1,n2,r0,r,r1; |
FNODE b1,b2,e1,e2,cc; |
FNODE b1,b2,e1,e2,cc,t,t1; |
FNODE *m; |
FNODE *m; |
int s; |
int s; |
Num c1,c2,c,e; |
Num c1,c2,c,e; |
int l1,l,i,j; |
int l1,l,i,j; |
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if ( fnode_is_zero(f1) || fnode_is_zero(f2) ) return 0; |
if ( IS_ZERO(f1) || IS_ZERO(f2) ) return mkfnode(1,I_FORMULA,0); |
else if ( fnode_is_number(f1) ) |
else if ( fnode_is_number(f1) ) |
return fnode_normalize_mul_coef((Num)eval(f1),f2); |
return fnode_normalize_mul_coef((Num)eval(f1),f2,expand); |
else if ( fnode_is_number(f2) ) |
else if ( fnode_is_number(f2) ) |
return fnode_normalize_mul_coef((Num)eval(f2),f1); |
return fnode_normalize_mul_coef((Num)eval(f2),f1,expand); |
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if ( expand && IS_NARYADD(f1) ) { |
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t = mkfnode(1,I_FORMULA,0); |
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for ( n1 = (NODE)FA1(f1); n1; n1 = NEXT(n1) ) { |
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t1 = fnode_normalize_mul(BDY(n1),f2,expand); |
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t = fnode_normalize_add(t,t1,expand); |
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} |
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return t; |
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} |
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if ( expand && IS_NARYADD(f2) ) { |
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t = mkfnode(1,I_FORMULA,0); |
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for ( n2 = (NODE)FA1(f2); n2; n2 = NEXT(n2) ) { |
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t1 = fnode_normalize_mul(f1,BDY(n2),expand); |
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t = fnode_normalize_add(t,t1,expand); |
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} |
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return t; |
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} |
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fnode_coef_body(f1,&c1,&b1); fnode_coef_body(f2,&c2,&b2); |
fnode_coef_body(f1,&c1,&b1); fnode_coef_body(f2,&c2,&b2); |
mulnum(0,c1,c2,&c); |
mulnum(0,c1,c2,&c); |
if ( !c ) return mkfnode(1,I_FORMULA,0); |
if ( !c ) return mkfnode(1,I_FORMULA,0); |
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n1 = (NODE)FA1(to_narymul(b1)); n2 = (NODE)FA1(to_narymul(b2)); |
n1 = (NODE)FA1(to_narymul(b1)); n2 = (NODE)FA1(to_narymul(b2)); |
l1 = length(n1); l = l1+length(n2); |
l1 = length(n1); l = l1+length(n2); |
m = (FNODE *)ALLOCA(l*sizeof(FNODE)); |
m = (FNODE *)ALLOCA(l*sizeof(FNODE)); |
Line 2302 FNODE fnode_normalize_mul(FNODE f1,FNODE f2) |
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Line 2332 FNODE fnode_normalize_mul(FNODE f1,FNODE f2) |
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return fnode_node_to_narymul(r); |
return fnode_node_to_narymul(r); |
} |
} |
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FNODE fnode_normalize_pwr(FNODE f1,FNODE f2) |
FNODE fnode_normalize_pwr(FNODE f1,FNODE f2,int expand) |
{ |
{ |
FNODE b,b1,e1,e,cc,r; |
FNODE b,b1,e1,e,cc,r; |
Num c,c1; |
Num c,c1; |
NODE arg,n; |
NODE arg,n; |
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Q q; |
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if ( fnode_is_zero(f2) ) return mkfnode(1,I_FORMULA,ONE); |
if ( IS_ZERO(f2) ) return mkfnode(1,I_FORMULA,ONE); |
else if ( fnode_is_zero(f1) ) return mkfnode(1,I_FORMULA,0); |
else if ( IS_ZERO(f1) ) return mkfnode(1,I_FORMULA,0); |
else if ( fnode_is_one(f2) ) return f1; |
else if ( fnode_is_one(f2) ) return f1; |
else if ( fnode_is_number(f1) ) |
else if ( fnode_is_number(f1) ) |
if ( fnode_is_integer(f2) ) { |
if ( fnode_is_integer(f2) ) { |
Line 2319 FNODE fnode_normalize_pwr(FNODE f1,FNODE f2) |
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Line 2350 FNODE fnode_normalize_pwr(FNODE f1,FNODE f2) |
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return mkfnode(3,I_BOP,pwrfs,f1,f2); |
return mkfnode(3,I_BOP,pwrfs,f1,f2); |
else if ( IS_BINARYPWR(f1) ) { |
else if ( IS_BINARYPWR(f1) ) { |
b1 = FA1(f1); e1 = FA2(f1); |
b1 = FA1(f1); e1 = FA2(f1); |
e = fnode_normalize_mul(e1,f2); |
e = fnode_normalize_mul(e1,f2,expand); |
if ( fnode_is_one(e) ) |
if ( fnode_is_one(e) ) |
return b1; |
return b1; |
else |
else |
Line 2328 FNODE fnode_normalize_pwr(FNODE f1,FNODE f2) |
|
Line 2359 FNODE fnode_normalize_pwr(FNODE f1,FNODE f2) |
|
fnode_coef_body(f1,&c1,&b1); |
fnode_coef_body(f1,&c1,&b1); |
pwrnum(0,(Num)c1,(Num)eval(f2),&c); |
pwrnum(0,(Num)c1,(Num)eval(f2),&c); |
cc = mkfnode(1,I_FORMULA,c); |
cc = mkfnode(1,I_FORMULA,c); |
b = fnode_normalize_pwr(b1,f2); |
b = fnode_normalize_pwr(b1,f2,expand); |
if ( fnode_is_one(cc) ) |
if ( fnode_is_one(cc) ) |
return b; |
return b; |
else |
else |
return fnode_node_to_narymul(mknode(2,cc,b)); |
return fnode_node_to_narymul(mknode(2,cc,b)); |
|
} else if ( expand && fnode_is_integer(f2) |
|
&& fnode_is_nonnegative_integer(f2) ) { |
|
q = (Q)eval(f2); |
|
if ( PL(NM(q)) > 1 ) error("fnode_normalize_pwr : exponent too large"); |
|
return fnode_expand_pwr(f1,QTOS(q)); |
} else |
} else |
return mkfnode(3,I_BOP,pwrfs,f1,f2); |
return mkfnode(3,I_BOP,pwrfs,f1,f2); |
} |
} |
|
|
|
FNODE fnode_expand_pwr(FNODE f,int n) |
|
{ |
|
int n1; |
|
FNODE f1,f2; |
|
|
|
if ( !n ) return mkfnode(1,I_FORMULA,ONE); |
|
else if ( IS_ZERO(f) ) return mkfnode(1,I_FORMULA,0); |
|
else if ( n == 1 ) return f; |
|
else { |
|
n1 = n/2; |
|
f1 = fnode_expand_pwr(f,n1); |
|
f2 = fnode_normalize_mul(f1,f1,1); |
|
if ( n%2 ) f2 = fnode_normalize_mul(f2,f,1); |
|
return f2; |
|
} |
|
} |
|
|
/* f = b^e */ |
/* f = b^e */ |
void fnode_base_exp(FNODE f,FNODE *bp,FNODE *ep) |
void fnode_base_exp(FNODE f,FNODE *bp,FNODE *ep) |
{ |
{ |
Line 2371 FNODE to_narymul(FNODE f) |
|
Line 2424 FNODE to_narymul(FNODE f) |
|
return r; |
return r; |
} |
} |
|
|
FNODE fnode_normalize_mul_coef(Num c,FNODE f) |
FNODE fnode_normalize_mul_coef(Num c,FNODE f,int expand) |
{ |
{ |
FNODE b1,cc,r; |
FNODE b1,cc; |
Num c1,c2; |
Num c1,c2; |
NODE n; |
NODE n,r,r0; |
|
|
if ( !c ) |
if ( !c ) |
return mkfnode(I_FORMULA,0); |
return mkfnode(I_FORMULA,0); |
Line 2390 FNODE fnode_normalize_mul_coef(Num c,FNODE f) |
|
Line 2443 FNODE fnode_normalize_mul_coef(Num c,FNODE f) |
|
error("fnode_normalize_mul_coef : cannot happen"); |
error("fnode_normalize_mul_coef : cannot happen"); |
else |
else |
return cc; |
return cc; |
} else |
} else if ( IS_NARYMUL(b1) ) { |
if ( IS_NARYMUL(b1) ) { |
|
MKNODE(n,cc,FA1(b1)); |
MKNODE(n,cc,FA1(b1)); |
} else { |
return fnode_node_to_narymul(n); |
n = mknode(2,cc,b1); |
} else if ( expand && IS_NARYADD(b1) ) { |
} |
for ( r0 = 0, n = (NODE)FA1(b1); n; n = NEXT(n) ) { |
r = fnode_node_to_narymul(n); |
NEXTNODE(r0,r); |
return r; |
BDY(r) = fnode_normalize_mul_coef(c2,BDY(n),expand); |
|
} |
|
if ( r0 ) NEXT(r) = 0; |
|
return fnode_node_to_naryadd(r0); |
|
} else |
|
return fnode_node_to_narymul(mknode(2,cc,b1)); |
} |
} |
} |
} |
} |
} |
Line 2419 void fnode_coef_body(FNODE f,Num *cp,FNODE *bp) |
|
Line 2476 void fnode_coef_body(FNODE f,Num *cp,FNODE *bp) |
|
} else { |
} else { |
*cp = (Num)ONE; *bp = f; |
*cp = (Num)ONE; *bp = f; |
} |
} |
|
} |
|
|
|
int fnode_normalize_comp_pwr(FNODE f1,FNODE f2); |
|
|
|
int fnode_normalize_comp(FNODE f1,FNODE f2) |
|
{ |
|
NODE n1,n2; |
|
int r,i1,i2; |
|
char *nm1,*nm2; |
|
FNODE b1,b2,e1,e2,g; |
|
Num ee,ee1,c1,c2; |
|
|
|
if ( IS_ZERO(f1) ) |
|
if ( IS_ZERO(f2) ) return 0; |
|
else return -1; |
|
else if ( IS_ZERO(f2) ) return 1; |
|
|
|
if ( IS_NARYADD(f1) || IS_NARYADD(f2) ) { |
|
f1 = to_naryadd(f1); f2 = to_naryadd(f2); |
|
n1 = (NODE)FA1(f1); n2 = (NODE)FA1(f2); |
|
while ( n1 && n2 ) |
|
if ( r = fnode_normalize_comp(BDY(n1),BDY(n2)) ) return r; |
|
else { |
|
n1 = NEXT(n1); n2 = NEXT(n2); |
|
} |
|
if ( n1 ) return 1; |
|
else if ( n2 ) return -1; |
|
else return 0; |
|
} |
|
if ( IS_NARYMUL(f1) || IS_NARYMUL(f2) ) { |
|
fnode_coef_body(f1,&c1,&b1); |
|
fnode_coef_body(f2,&c2,&b2); |
|
if ( !compfnode(b1,b2) ) return compnum(0,c1,c2); |
|
b1 = to_narymul(b1); b2 = to_narymul(b2); |
|
n1 = (NODE)FA1(b1); n2 = (NODE)FA1(b2); |
|
while ( 1 ) { |
|
while ( n1 && n2 && !compfnode(BDY(n1),BDY(n2)) ) { |
|
n1 = NEXT(n1); n2 = NEXT(n2); |
|
} |
|
if ( !n1 || !n2 ) { |
|
if ( n1 ) return 1; |
|
else if ( n2 ) return -1; |
|
else return 0; |
|
} |
|
fnode_base_exp(BDY(n1),&b1,&e1); |
|
fnode_base_exp(BDY(n2),&b2,&e2); |
|
|
|
if ( r = fnode_normalize_comp(b1,b2) ) { |
|
if ( r > 0 ) |
|
return fnode_normalize_comp(e1,mkfnode(1,I_FORMULA,0)); |
|
else if ( r < 0 ) |
|
return fnode_normalize_comp(mkfnode(1,I_FORMULA,0),e2); |
|
} else { |
|
n1 = NEXT(n1); n2 = NEXT(n2); |
|
if ( fnode_is_number(e1) && fnode_is_number(e2) ) { |
|
/* f1 = t b^e1 ... , f2 = t b^e2 ... */ |
|
subnum(0,eval(e1),eval(e2),&ee); |
|
r = compnum(0,ee,0); |
|
if ( r > 0 ) { |
|
/* e1>e2 */ |
|
g = mkfnode(3,I_BOP,pwrfs,b1,mkfnode(1,I_FORMULA,ee)); |
|
MKNODE(n1,g,n1); |
|
} else if ( r < 0 ) { |
|
/* e1<e2 */ |
|
chsgnnum(ee,&ee1); ee = ee1; |
|
g = mkfnode(3,I_BOP,pwrfs,b1,mkfnode(1,I_FORMULA,ee)); |
|
MKNODE(n2,g,n2); |
|
} |
|
} else { |
|
r = fnode_normalize_comp(e1,e2); |
|
if ( r > 0 ) return 1; |
|
else if ( r < 0 ) return -1; |
|
} |
|
} |
|
} |
|
} |
|
if ( IS_BINARYPWR(f1) || IS_BINARYPWR(f2) ) |
|
return fnode_normalize_comp_pwr(f1,f2); |
|
|
|
/* now, IDs of f1 and f2 must be I_FORMULA, I_FUNC, or I_PVAR */ |
|
switch ( f1->id ) { |
|
case I_FORMULA: |
|
switch ( f2->id ) { |
|
case I_FORMULA: |
|
return arf_comp(CO,FA0(f1),FA0(f2)); |
|
case I_FUNC: case I_PVAR: |
|
return -1; |
|
default: |
|
error("fnode_normalize_comp : undefined"); |
|
} |
|
break; |
|
case I_FUNC: |
|
switch ( f2->id ) { |
|
case I_FORMULA: |
|
return 1; |
|
case I_FUNC: |
|
nm1 = ((FUNC)FA0(f1))->name; nm2 = ((FUNC)FA0(f2))->name; |
|
r = strcmp(nm1,nm2); |
|
if ( r > 0 ) return 1; |
|
else if ( r < 0 ) return -1; |
|
else { |
|
/* compare args */ |
|
n1 = FA0((FNODE)FA1(f1)); n2 = FA0((FNODE)FA1(f2)); |
|
while ( n1 && n2 ) |
|
if ( r = fnode_normalize_comp(BDY(n1),BDY(n2)) ) return r; |
|
else { |
|
n1 = NEXT(n1); n2 = NEXT(n2); |
|
} |
|
if ( n1 ) return 1; |
|
else if ( n2 ) return -1; |
|
else return 0; |
|
} |
|
break; |
|
case I_PVAR: |
|
return -1; |
|
default: |
|
error("fnode_normalize_comp : undefined"); |
|
} |
|
case I_PVAR: |
|
switch ( f2->id ) { |
|
case I_FORMULA: case I_FUNC: |
|
return 1; |
|
case I_PVAR: |
|
i1 = (int)FA0(f1); i2 = (int)FA0(f2); |
|
if ( i1 > i2 ) return 1; |
|
else if ( i1 < i2 ) return -1; |
|
else return 0; |
|
default: |
|
error("fnode_normalize_comp : undefined"); |
|
} |
|
break; |
|
default: |
|
error("fnode_normalize_comp : undefined"); |
|
} |
|
} |
|
|
|
int fnode_normalize_comp_pwr(FNODE f1,FNODE f2) |
|
{ |
|
FNODE b1,b2,e1,e2; |
|
int r; |
|
|
|
fnode_base_exp(f1,&b1,&e1); |
|
fnode_base_exp(f2,&b2,&e2); |
|
if ( r = fnode_normalize_comp(b1,b2) ) { |
|
if ( r > 0 ) |
|
return fnode_normalize_comp(e1,mkfnode(1,I_FORMULA,0)); |
|
else if ( r < 0 ) |
|
return fnode_normalize_comp(mkfnode(1,I_FORMULA,0),e2); |
|
} else return fnode_normalize_comp(e1,e2); |
} |
} |