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age 29
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As time goes on, I grow more disillusioned with quantum field theory.


1d
comment Mapping also for one element (or telling it how to do so if head got changed)
@belisarius I posted an answer based on your comment. Would you suggest which is better (meaning faster)? Plus @@ or Total @ ?
1d
answered Mapping also for one element (or telling it how to do so if head got changed)
1d
comment Mapping also for one element (or telling it how to do so if head got changed)
Got it. Thanks!
1d
asked Mapping also for one element (or telling it how to do so if head got changed)
2d
asked Numeric-type attributes for symbols (analog of NumericFunction)
Oct
27
comment How to get “Signature” of each element of “Permutation” output
Yes this works very nicely! Many thanks for your help.
Oct
27
revised How to get “Signature” of each element of “Permutation” output
Clarified that input should be an arbitrary list of symbols.
Oct
27
comment How to get “Signature” of each element of “Permutation” output
Oops, I forgot to clarify that input is an arbitrary list of symbols. Thus, I can't hard-code the minus sign. e.g If input={a,b,c} then the sign in front of f[{a,b,c}] should be +1 (I have edited the question to clarify this).
Oct
27
asked How to get “Signature” of each element of “Permutation” output
Oct
26
awarded  Enthusiast
Oct
24
comment To UpSet or not to UpSet when using MakeBoxes
@LeonidShifrin see my comment above to Rojo
Oct
24
comment To UpSet or not to UpSet when using MakeBoxes
@Rojo It turns out I can format things like $f^2(x,y)$ by using MakeBoxes[Power[myfuncF[a_, b_], n_], TraditionalForm] := RowBox[{SuperscriptBox["f", ToBoxes[n]], "(", Sequence @@ Riffle[Map[ToBoxes, {a, b}], ","], ")"}], which I cannot do using UpSet (since myfuncF would be too deep).
Oct
24
accepted Nested list of patterns in SyntaxInformation “ArgumentsPattern”
Oct
23
accepted Fast functional method for multiplying duplication numbers in a large list
Oct
23
asked Nested list of patterns in SyntaxInformation “ArgumentsPattern”
Oct
23
asked Fast functional method for multiplying duplication numbers in a large list
Oct
23
accepted Zoom settings other than 50% 75% 100%,
Oct
22
asked Zoom settings other than 50% 75% 100%,
Oct
22
accepted Removing spurious parenthesis in `TraditionalForm`
Oct
21
asked Removing spurious parenthesis in `TraditionalForm`