How to do the iterative work?

Question

tabw 2014-9-2

关闭： MATLAB Answer Bot 2021-8-20

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)?

Adam 2014-9-2

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!

Answer 1

Iain 2014-9-2

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