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How to do the iterative work?

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tabw
tabw on 2 Sep 2014
Closed: MATLAB Answer Bot on 20 Aug 2021
for example, matrix(1,1,1)=0;
next matrix(1,2,1)=1 ... matrix(1,100,1)=215;
Next matrix(2,1,1)= 124;
until matrix(10,10,1)=512;
Basically, I want to store many value into matrix
can I use matrix(i,i,1)?
  1 Comment
Adam
Adam on 2 Sep 2014
Beware with your indices though.
matrix( 77, 99, 1000 ) = 7;
will quietly go away and create a matrix of > 7.6 million values (zeros) just to put the number 7 in its final location.
On numerous occasions I have accidentally got a matrix index calculation wrong and had to power my machine off after it froze out of memory!

Answers (1)

Iain
Iain on 2 Sep 2014
Pretty much yeah,
matrix(i,i,1) = 5
That will set the element on the ith row and ith column on the 1st slice/page/"whatever you want to call it" to be 5
matrix(i,j,k) = 5
That will set the element on the ith row and jth column on the kth slice/page/"whatever you want to call it" to be 5

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