Questions on using and specifying iterators used in Mathematica functions.

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4
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61 views

Can a single Sum with multiple iterators be different from nested Sums?

Multiple sums are documented with two or more iterators, for example: Sum[1/(j^2 (i + 1)^2), {i, 1, Infinity}, {j, 1, i}] however the same answer can be ...
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0answers
64 views

How to use nest to reduce the memory eatting of mma?

I enconter a problem about number: If we have 5+3+2=151022 9+2+4=183652 8+6+3=482466 5+4+5=202541 then 7+2+5=? It is easy to get the first two group of numbers? for the ...
1
vote
0answers
62 views

Problems with indexes in a Do-cycle and CoefficientArrays

I have a system of linear equations with variables $A_n$ and need its coefficients in a matrix form (Transform linear system into a matrix form). I'm trying to do that through a ...
0
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0answers
52 views

Splitting an Array

Background: I'm a fairly experienced programmer, but new to Mathematica I have an image analysis function I have created, which returns a multidimensional array that I do some processing on. I want ...
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0answers
29 views

Problem using an iteration in a product

I'm trying to solve a general solution for this productive iteration, but the program gets stuck in the calculation and says:$RecursionLimit::reclim: Recursion depth of 1024 exceeded. >> Here is the ...
0
votes
0answers
148 views

Iteration of multiple functions that feed into each other

I'm trying to figure out how to iterate through several functions that all "feed" into one-another but am having some trouble. Here are the variables: ...