Periodic Number Problem Loosing Decimals

Hi, im solving a problem in which I need to different operations to a matrix and then compare the sum of each row to 1 (sum(A,2)==1) to see if its a transition matrix. However, in some operations i have to add periodic numbers, which make me loose decimales at the end of the program. Because of this when I compare the sum of each row which is 1.0000 to 1 it says its false. I know i could round it, however that wouldn`t be precise. Is there any form to make matlab represent the matrix numbers in a division so it doesn´t loose decimals??

Answer 1

[Walter Roberson]

If all of the values involved are rationals then you can use the Symbolic Toolbox.

[Enrique Ramos García]

Lots of thanks didnt know about it, im new :)