How can I tell MATLAB to discard two roots and only proceed with one value?

I used the matlab function "roots" to find the roots of a cubic. This is within a for loop, so the values are always changing based on my inputs, but the three roots are generally along the lines of:

T2 =

   1.0e+04 *

   2.658308259664422
  -0.442009626219650
   0.057471418250745

How can I tell matlab to take the 0.057471418250745 value and discard the other two values going forward? I'm trying to simulate the brayton cycle if that helps.

Thanks! Tom

Answer 1

[Shashank Prasanna]

Does reassigning help?

T = T2(3);

or removing the first two?

T2(1:2) = [];

I am not familiar with brayton cycle, but if you have a specific criterion for rejection or you mean something else by "discard the other two values going forward" Please share some code or more details about your use case.

Answer 2

[Thomason]

Thanks Benji, reassigning was all I needed to do