linear index to matrix index

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yonatan s
yonatan s 2018-2-1
评论： Andrei Bobrov 2018-2-1
ola,
I have a matrix 1020x1294, and the linear index 475000. I can do the math by myself, but I'd like to know is there a function that calculates what is the row&column of this index in the matrix?
thanks
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yonatan s
yonatan s 2018-2-1
no reason. why does it matter?
Birdman
Birdman 2018-2-1
Just wondered. It does not matter.

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采纳的回答

Andrei Bobrov
Andrei Bobrov 2018-2-1
ii = 475000;
m = size(A,1);
r = rem(ii,m);
c = ceil(ii/m);

更多回答（1 个）

Birdman
Birdman 2018-2-1
编辑：Birdman 2018-2-1
One approach:(use ind2sub)
A=randi([1 5],1020,1294);%demo data
[r,c]=ind2sub(size(A),475000)

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