## reduce-algebra-developers — Discussion of development, administration and support for Reduce

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Showing 2 results of 2

 [Reduce-algebra-developers] Dissapear sum's members on switching factor on/off From: abpetrov - 2013-08-12 16:28:32 ```Hi, I just have tried make linear transformation for fermi operators. But after such transformation result has strange property. When I set switch factor on some sum's members dissapears. When I set switch factor off they appears again. I suppose this is a bad thing because in many situations it can lead to illegal interpretation calculation results. So, questions is 1) Why dissapears some sum's members 2) How can I avoid that situations? I can add, that when I made new fermi operators a2 and a2c (see below) as commutative variables they don't disappears. The program with non-commutative variables below. In program I have fermi operators a,ac with rules and a2 and a2c with rules. After that I defined operator H, in which I made linear transformation. Last two outputs of operator H2 is different because of switch factor on. off lower\$ on intstr\$ load_package noncom2; operator a,ac; noncom a,a; noncom ac,ac; noncom a,ac; for all i let a(i)*ac(i) = 1 - ac(i)*a(i); for all i,j such that i neq j let a(i)*ac(j) = -ac(j)*a(i); for all i,j such that ordp(i,j) let a(i)*a(j) = -a(j)*a(i); for all i,j such that ordp(i,j) let ac(i)*ac(j) = -ac(j)*ac(i); operator a2,a2c; noncom a2,a2; noncom a2c,a2c; noncom a2,a2c; for all i let a2(i)*a2c(i) = 1 - a2c(i)*a2(i); for all i,j such that i neq j let a2(i)*a2c(j) = -a2c(j)*a2(i); for all i,j such that ordp(i,j) let a2(i)*a2(j) = -a2(j)*a2(i); for all i,j such that ordp(i,j) let a2c(i)*a2c(j) = -a2c(j)*a2c(i); operator H; H := J1*ac(i)*a(i+1) + J1*ac(i+1)*a(i); operator U,UT,V,VT; sub_fermi := { a(~i) => U(i,j1)*a2(j1) + V(i,j1)*a2c(j1), ac(~i) => VT(i,j2)*a2(j2) + UT(i,j2)*a2c(j2) }; H2 := (H where sub_fermi); on factor; H2; Best regards, Petrov Alexander ```
 Re: [Reduce-algebra-developers] Build Reduce with wxWidget From: abpetrov - 2013-08-12 11:47:58 ```10.08.2013 16:16, abpetrov пишет: > Hi, > > I have made attempt to build Reduce with wxWidget library. > I used command > > ./configure --with-csl --with-wx=/usr/include/wx-2.8 > > to configure sources. But I got error message > > configure: error: --with-fox=default and --with-wx=/usr/include/wx-2.8 > inconsistent here > > How can I switch off Fox library and build with wxWidget? > > > Best regards, Petrov Alexander. > > ------------------------------------------------------------------------------ > Get 100% visibility into Java/.NET code with AppDynamics Lite! > It's a free troubleshooting tool designed for production. > Get down to code-level detail for bottlenecks, with <2% overhead. > Download for free and get started troubleshooting in minutes. > http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk > _______________________________________________ > Reduce-algebra-developers mailing list > Reduce-algebra-developers@... > https://lists.sourceforge.net/lists/listinfo/reduce-algebra-developers > I am sorry, for configuration command ./configure --with-csl --with-wx build works fine. ```

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