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1h
comment Poets of the 19th century
Lenin was a poet??
21h
comment Why is it so complicated to simplify a complex conjugate?
@BobHanlon is right. All the issues here are caused by some very basic misunderstandings about syntax. Assuming only affects commands that take the option Assumptions. Simplify is one of those, but it must be inside the Assumptions. The other code block contains logical statements which have no effect at all on the subsequent lines because they aren't put into the form of Assuming or $Assumptions. I think there must be a duplicate but can't find it right now.
22h
comment Why is it so complicated to simplify a complex conjugate?
Related: Remove annoying Conjugate
1d
reviewed Close Copy/Pasting code that contains double quotation marks leads to broken code
1d
reviewed Close Closed solutions for `FindRoot`, no solutions for `Reduce` or `Solve`
1d
reviewed Close Fourier series on Wolfram alpha
1d
reviewed Close FeynArts 3.7 not compatible with V10
2d
revised Pull out scalars from NonCommutativeMultiply in commutator of SU2 spin algebra
physics tag added
2d
comment Pull out scalars from NonCommutativeMultiply in commutator of SU2 spin algebra
@DanielLichtblau Just for completeness: There's also this related question where your linked FAQ is equally relevant (of course it's relevant for lots of other questions...)
2d
revised Pull out scalars from NonCommutativeMultiply in commutator of SU2 spin algebra
Added reverse steps from matrices back to symbols
2d
awarded  Nice Answer
Oct
22
revised Pull out scalars from NonCommutativeMultiply in commutator of SU2 spin algebra
Different definition with the same properties used. Gives different result.
Oct
22
revised Pull out scalars from NonCommutativeMultiply in commutator of SU2 spin algebra
Motivation
Oct
22
revised Pull out scalars from NonCommutativeMultiply in commutator of SU2 spin algebra
copied wrong defininitions
Oct
22
revised Pull out scalars from NonCommutativeMultiply in commutator of SU2 spin algebra
Error copying equation
Oct
22
answered Pull out scalars from NonCommutativeMultiply in commutator of SU2 spin algebra
Oct
22
comment Pull out scalars from NonCommutativeMultiply in commutator of SU2 spin algebra
I would do this without NonCommutativeMultiply altogether. But if you do want to go that route, I think you will have to provide the code that you tried for your commutator algebra. Otherwise we'd have to re-invent the wheel before answering.
Oct
22
reviewed Close Parametric Plot 3D won't show up
Oct
21
revised Why doesn't FullSimplify simplify expressions with DiracDelta?
small clarification
Oct
21
revised Why doesn't FullSimplify simplify expressions with DiracDelta?
Added more explanation