version 1.6, 2003/11/27 15:56:08 |
version 1.7, 2003/12/23 10:41:10 |
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@comment $OpenXM: OpenXM/src/asir-doc/parts/builtin/poly.texi,v 1.5 2003/04/20 08:01:29 noro Exp $ |
@comment $OpenXM: OpenXM/src/asir-doc/parts/builtin/poly.texi,v 1.6 2003/11/27 15:56:08 ohara Exp $ |
\BJP |
\BJP |
@node $BB?9`<0$*$h$SM-M}<0$N1i;;(B,,, $BAH$_9~$_H!?t(B |
@node $BB?9`<0$*$h$SM-M}<0$N1i;;(B,,, $BAH$_9~$_H!?t(B |
@section $BB?9`<0(B, $BM-M}<0$N1i;;(B |
@section $BB?9`<0(B, $BM-M}<0$N1i;;(B |
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* %:: |
* %:: |
* subst psubst:: |
* subst psubst:: |
* diff:: |
* diff:: |
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* ediff:: |
* res:: |
* res:: |
* fctr sqfr:: |
* fctr sqfr:: |
* modfctr:: |
* modfctr:: |
Line 901 from left to right. |
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Line 902 from left to right. |
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(sin(log(x)+1)-cos(log(x)+1))/(sin(log(x)+1)^2) |
(sin(log(x)+1)-cos(log(x)+1))/(sin(log(x)+1)^2) |
[3] diff(sin(x),[x,x,x,x]); |
[3] diff(sin(x),[x,x,x,x]); |
sin(x) |
sin(x) |
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@end example |
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\JP @node ediff,,, $BB?9`<0$*$h$SM-M}<0$N1i;;(B |
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\EG @node ediff,,, Polynomials and rational expressions |
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@subsection @code{ediff} |
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@findex ediff |
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@table @t |
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@item ediff(@var{poly}[,@var{varn}]*) |
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@item ediff(@var{poly},@var{varlist}) |
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\JP :: @var{poly} $B$r(B @var{varn} $B$"$k$$$O(B @var{varlist} $B$NCf$NJQ?t$G=g<!%*%$%i!<HyJ,$9$k(B. |
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\BEG |
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:: Differentiate @var{poly} successively by Euler operators of @var{var}'s for the first |
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form, or by Euler operators of variables in @var{varlist} for the second form. |
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\E |
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@end table |
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@table @var |
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@item return |
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\JP $BB?9`<0(B |
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\EG polynomial |
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@item poly |
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\JP $BB?9`<0(B |
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\EG polynomial |
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@item varn |
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\JP $BITDj85(B |
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\EG indeterminate |
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@item varlist |
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\JP $BITDj85$N%j%9%H(B |
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\EG list of indeterminates |
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@end table |
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@itemize @bullet |
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\BJP |
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@item |
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$B:8B&$NITDj85$h$j(B, $B=g$K%*%$%i!<HyJ,$7$F$$$/(B. $B$D$^$j(B, @t{ediff}(@var{poly},@t{x,y}) $B$O(B, |
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@t{ediff}(@t{ediff}(@var{poly},@t{x}),@t{y}) $B$HF1$8$G$"$k(B. |
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\E |
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\BEG |
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@item |
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differentiation is performed by the specified indeterminates (variables) |
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from left to right. |
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@t{ediff}(@var{poly},@t{x,y}) is the same as |
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@t{ediff}(@t{ediff}(@var{poly},@t{x}),@t{y}). |
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\E |
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@end itemize |
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@example |
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[0] ediff((x+2*y)^2,x); |
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2*x^2+4*y*x |
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[1] ediff((x+2*y)^2,x,y); |
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4*y*x |
@end example |
@end example |
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\JP @node res,,, $BB?9`<0$*$h$SM-M}<0$N1i;;(B |
\JP @node res,,, $BB?9`<0$*$h$SM-M}<0$N1i;;(B |