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visits member for 2 years, 11 months
seen Mar 24 at 21:04

Nov
6
asked Simple Solve example fails: why?
Oct
27
awarded  Popular Question
Oct
19
comment Ways to compute inner products of tensors
@Jens Doesn't this waste memory in a huge way because the calculation stores the tensor product as an intermediate value? Or does TensorProduct have a special UpValue or something...
May
16
awarded  Teacher
May
16
answered Can you form a list with elements which are terms from an equation?
May
3
awarded  Yearling
Apr
19
awarded  Good Question
Jan
23
awarded  Nice Question
Jan
23
accepted DeleteDuplicates not deleting duplicates
Jan
23
revised DeleteDuplicates not deleting duplicates
update, clarification
Jan
23
asked DeleteDuplicates not deleting duplicates
Oct
12
comment Printing Block Matrices
Awesome, thanks. I put my edit in before I saw your example, and I see we came up with similar examples. The matrix I actually want to print is too unwieldly to copy here.
Oct
12
accepted Printing Block Matrices
Oct
12
revised Printing Block Matrices
added example
Oct
10
asked Printing Block Matrices
Aug
23
accepted Determine whether some expression contains a given symbol
Aug
23
comment Determine whether some expression contains a given symbol
-1? Sure the answer is obvious once you know it, but I spent a very long time looking for an answer, and even longer trying to code my own answer. It's not like FreeQ is a terrible descriptive function name, and it's not listed in the 'Patterns' Guide, or the 'Testing Expressions' guide, or a bunch of other guides that might seem relevant to a newish user.
Aug
23
asked Determine whether some expression contains a given symbol
Aug
19
awarded  Commentator
Aug
19
comment Implementation of builtin function Fold
That's great, thanks!