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Question: nested double looping

Question:nested double looping

Shahrina86 15 Maple
syntax sum summation
December 16 2019
0

Hi i want to perform double looping for different values of i and j as follows.. when i remove the summation sign it works, but no output obtained otherwise.

 

for j from 0 to 4, for i from 1 to 4 do u[i,1]:=-h*(∑)int(K2ij*gj(t),t=0..x)od;

 

Each K2ij and gj(t) have their own values defined above in the worksheet.
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