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I found the similar property on Tr/TR.

For some coeds(including do TR for long expresssions), it is much faster by using Math5.2+FeynCalc4.1 than by Math8+FeynCalc 8. I think such difference may come from the different definition of Tr/TR in FeynCalc4.1/4.2 and FenyCalc8, is it?

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• Maybe in reply to: Feng Feng: "The Tr is terriblely slow in FC6.0"
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