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2
votes
3answers
59 views

Perform For-loop and show output which meets a certain criterion

I am new to Mathematica and I have a For loop like so: For[i = 0, i < 15, i++, PowerMod[i, -1, 15]] Currently it doesn't output anything. The calculation I am ...
3
votes
1answer
85 views

Parallel Apply on a deeply nested expression

I have a deeply nested expression, i.e. something like {{{{...}..}..}..}, and I'd like to use Apply in a parallel fashion, e.g. ...
2
votes
0answers
50 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 ...
0
votes
0answers
35 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
votes
0answers
78 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
votes
0answers
116 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: ...