I have four matrix of order 500X100 and three matrix has very small value like 2.12345 etc and fourth matrix has very large value like 1.7654e+165 and i want to substact fourth matrix from first,second and third matrix so please give me solution.

i tried to substract but every time the maximum value with minus sign comes in resulted matrix like -1.7654e+165 and it affect my final result.please give solution.

[madhan ravi]

Duplicate of https://www.mathworks.com/matlabcentral/answers/437662-i-want-to-substract-very-large-value-from-small-value-in-matlab

Answer 1

[KSSV]

YOu can straight away substract them right? Check the below example:

A = rand(2,2,4) ;
iwant =A(:,:,1:3)- A(:,:,4)