How to calculate the difference b/w elements of a matrix corresponding to any one element of a m*n matrix using loop

hello,

I want to calculate the difference b/w different elements of a matrix corresponging to any single element.

say, i am having any 3*4 matrix and want to calculate the difference from element [1 3] with each and every remaining lemnents of the of the matrix.

[madhan ravi]

please explicitly state your desired result

[Sonia Goyal]

say this is the matrix A = [ a b c d; f g h i; j k l m ]

and if i want to calculate the difference from element a11 with respect to each and every remaining element of the matrix using a loop because i will have to do the same for a matrix with larger dimensions.

Answer 1

[KSSV]

A = rand(3,4) ;
iwant = A(1,3)-A(:)

[Sonia Goyal]

Thank you for kind response sir but i have the different query.

say this is the matrix A = [ a b c d; f g h i; j k l m ]

and if i want to calculate the difference from element a11 with respect to each and every remaining element of the matrix using a loop because i will have to do the same for a matrix with larger dimensions.