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SandBoxCollect

Edit detail for SandBoxCollect revision 4 of 7

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Editor: Bill page Time: 2014/09/24 02:33:59 GMT+0
Note:

added:
    collect2:(Expression Integer,Expression Integer,List Equation Expression Integer) -> List Expression Integer

added:
    collect2(x,k,s1) ==
      x2:=eval(collect1(eval(x,s1),kernel '%k),[kernel '%k],[k])
      x2=0 => []
      concat(x2,collect2(x-x2,k,s1))

removed:
---
-collect2(x:Expression Integer,k:Expression Integer,s1:List Equation Expression Integer):List Expression Integer ==
-  x2:=eval(collect1(eval(x,s1),%k::Expression Integer::Kernel Expression Integer)::Expression Integer,%k=k)
-  x2=0 => []
-  concat(x2,collect2(x-x2,k,s1))

Collect terms in x with given factor k.

spad

)abbrev package COLL Collect
QF==>PolynomialCategoryQuotientFunctions(IndexedExponents Kernel Expression Integer,_
                                         Kernel Expression Integer,_
                                         Integer,_
                                         SparseMultivariatePolynomial(Integer,Kernel Expression Integer),_
                                         Expression Integer)
Collect(): with
    collect1:(Expression Integer,Kernel Expression Integer) -> Expression Integer
    collect2:(Expression Integer,Expression Integer,List Equation Expression Integer) -> List Expression Integer
  == add
    collect1(x,k) ==
      n1:=univariate(x::Expression Integer,k::Kernel Expression Integer)$QF
      n2:=(leadingMonomial numer n1)/(denom n1)
      n3:=multivariate(n2,k::Kernel Expression Integer)$QF
    collect2(x,k,s1) ==
      x2:=eval(collect1(eval(x,s1),kernel '%k),[kernel '%k],[k])
      x2=0 => []
      concat(x2,collect2(x-x2,k,s1))

spad

   Compiling FriCAS source code from file 
      /var/lib/zope2.10/instance/axiom-wiki/var/LatexWiki/5764703031339366490-25px001.spad
      using old system compiler.
   COLL abbreviates package Collect 
------------------------------------------------------------------------
   initializing NRLIB COLL for Collect 
   compiling into NRLIB COLL 
   compiling exported collect1 : (Expression Integer,Kernel Expression Integer) -> Expression Integer
Time: 0.04 SEC.

   compiling exported collect2 : (Expression Integer,Expression Integer,List Equation Expression Integer) -> List Expression Integer
Time: 0.04 SEC.

(time taken in buildFunctor:  0)

;;;     ***       |Collect| REDEFINED

;;;     ***       |Collect| REDEFINED
Time: 0 SEC.

   Cumulative Statistics for Constructor Collect
      Time: 0.08 seconds

   finalizing NRLIB COLL 
   Processing Collect for Browser database:
--->-->Collect(constructor): Not documented!!!!
--->-->Collect((collect1 ((Expression (Integer)) (Expression (Integer)) (Kernel (Expression (Integer)))))): Not documented!!!!
--->-->Collect((collect2 ((List (Expression (Integer))) (Expression (Integer)) (Expression (Integer)) (List (Equation (Expression (Integer))))))): Not documented!!!!
--->-->Collect(): Missing Description
; compiling file "/var/aw/var/LatexWiki/COLL.NRLIB/COLL.lsp" (written 24 SEP 2014 02:33:52 AM):

; /var/aw/var/LatexWiki/COLL.NRLIB/COLL.fasl written
; compilation finished in 0:00:00.019
------------------------------------------------------------------------
   Collect is now explicitly exposed in frame initial 
   Collect will be automatically loaded when needed from 
      /var/aw/var/LatexWiki/COLL.NRLIB/COLL

fricas

collect(x:Expression Integer,k:Expression Integer):List Expression Integer ==
  s1:=solve(%k=k,variables(k)(1))
  collect2(x,k,s1)

   Function declaration collect : (Expression(Integer),Expression(
      Integer)) -> List(Expression(Integer)) has been added to 
      workspace.

Type: Void

fricas

collect((r2-r1+1)^3,(r2-r1)::Expression Integer)

fricas

Compiling function collect with type (Expression(Integer),Expression
      (Integer)) -> List(Expression(Integer))

$\label{eq1}\begin{array}{@{}l} \displaystyle \left[{{{r 2}^{3}}-{3 \ r 1 \ {{r 2}^{2}}}+{3 \ {{r 1}^{2}}\ r 2}-{{r 1}^{3}}}, \:{{3 \ {{r 2}^{2}}}-{6 \ r 1 \ r 2}+{3 \ {{r 1}^{2}}}}, \: \right. \ \ \displaystyle \left.{{3 \ r 2}-{3 \ r 1}}, \: 1 \right]$

(1)

Type: List(Expression(Integer))

fricas

test(reduce(+,%) = (r2-r1+1)^3)

$\label{eq2} \mbox{\rm true}$

(2)

Type: Boolean