**Next message:**Vladyslav Shtabovenko: "Re: Is there any way to change the default ordering in Mathematica together with FC9.0"**Previous message:**Vladyslav Shtabovenko: "Re: FermionSpinSum"**Next in thread:**Vladyslav Shtabovenko: "Re: Is there any way to change the default ordering in Mathematica together with FC9.0"**Reply:**Vladyslav Shtabovenko: "Re: Is there any way to change the default ordering in Mathematica together with FC9.0"**Maybe reply:**Sun Qingfeng: "Re: Is there any way to change the default ordering in Mathematica together with FC9.0"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]**Mail actions:**[ respond to this message ] [ mail a new topic ]

It is known in Mathematica, for three expressions "1", "r", and "z", the ordering strategy is

Input: Ordering[{1, r, z}]

Output: {1, 2, 3}

Before I load the FC9.0, The output is what I want:

Input: 1+r-z//Simplify

Output: 1+r-z

After loading the FC9.0

Input: 1+r-z//Simplify

Output: r-z+1

My question is:

How can I return the default output "1+r-z" when I work with FC?

Thanks a lot!

**Next message:**Vladyslav Shtabovenko: "Re: Is there any way to change the default ordering in Mathematica together with FC9.0"**Previous message:**Vladyslav Shtabovenko: "Re: FermionSpinSum"**Next in thread:**Vladyslav Shtabovenko: "Re: Is there any way to change the default ordering in Mathematica together with FC9.0"**Reply:**Vladyslav Shtabovenko: "Re: Is there any way to change the default ordering in Mathematica together with FC9.0"**Maybe reply:**Sun Qingfeng: "Re: Is there any way to change the default ordering in Mathematica together with FC9.0"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]**Mail actions:**[ respond to this message ] [ mail a new topic ]

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