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Diff for /OpenXM/src/kan96xx/Kan/dr.sm1 between version 1.7 and 1.8

version 1.7, 2000/12/29 07:19:38 version 1.8, 2002/02/09 06:21:02
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 % $OpenXM: OpenXM/src/kan96xx/Kan/dr.sm1,v 1.6 2000/12/10 07:48:42 takayama Exp $  % $OpenXM: OpenXM/src/kan96xx/Kan/dr.sm1,v 1.7 2000/12/29 07:19:38 takayama Exp $
 %% dr.sm1 (Define Ring) 1994/9/25, 26  %% dr.sm1 (Define Ring) 1994/9/25, 26
 %% This file is error clean.  %% This file is error clean.
   
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   /arg1 set    /arg1 set
   [/vars /n /i /xList /dList /param] pushVariables    [/vars /n /i /xList /dList /param] pushVariables
   [    [
        (This is an obsolete macro. Use ring_of_differential_difference_operators)
         error
      (mmLarger) (matrix) switch_function       (mmLarger) (matrix) switch_function
      (mpMult)   (difference) switch_function       (mpMult)   (difference) switch_function
      (red@)     (module1) switch_function       (red@)     (module1) switch_function
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 } def  } def
   
   
   /ring_of_differential_difference_operators {
     /arg1 set
     [/vars /n /i /xList /dList /param /dvar /evar /vars2 ] pushVariables
     [
        /vars arg1 def
        vars tag 6 eq not {
          ( List is expected as the argument for ring_of_differential_difference_operators ) error
        } { } ifelse
        vars 0 get /dvar set
        vars 1 get /evar set
        (mmLarger) (matrix) switch_function
        (mpMult)   (difference) switch_function
        (red@)     (module1) switch_function
        (groebner) (standard) switch_function
        (isSameComponent) (x) switch_function
   
        [dvar to_records pop] /vars set %[x y z]
        vars reverse /xList set         %[z y x]
   
        [evar to_records pop] /vars2 set %[s1 s2]
   
        vars2 reverse  {@@@.Esymbol 2 1 roll 2 cat_n} map
        xList
        join /xList set   %[Es2 Es1 z y x]
   
        vars2 reverse
        vars {@@@.Dsymbol 2 1 roll 2 cat_n} map
        reverse join /dList set              %[s2 s1 Dz Dy Dx]
        [(H)] xList join [@@@.esymbol] join /xList set
        [(h)] dList join [@@@.Esymbol] join /dList set
        [0 1 1 << vars2 length 1 add >>  << xList length >>
           1 1 << vars2 length 1 add >> << xList length 1 sub >> ] /param set
        [ xList dList param ] /arg1 set
     ] pop
     popVariables
     arg1
   } def
   
 /reverse {  /reverse {
   /arg1 set    /arg1 set
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Removed from v.1.7  
changed lines
  Added in v.1.8
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