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2
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0answers
55 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
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0answers
50 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
51 views

Iteration variable in Sum gets assigned the final iteration value

I've got a function which is defined iteratively via ...
0
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0answers
31 views

How to append when function outputs are two different arrays?

I have written the following lines of code to generate two vectors $y$ and $poa$. I would like to repeatedly run different instances of the procedure, appending all the resulting $y$s to form one long ...
0
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0answers
37 views

How can I get the covariance result cumulatively?

I am trying to derive the covariance results for n x 4 matrix where n is an arbitrary number. I am trying to derive the covariance for each row cumulatively. For example, I am trying to derive the ...
0
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0answers
82 views

Simple recursive function?

I'm new in Mathematica and need some help. I'm trying to make a recursive function but I'm not sure how to iterate through more than one item. To be more clear, take this pseudo code for example: ...
0
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0answers
125 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: ...