Take the 2-minute tour ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

I need to make a program to calculate the values of some variables, but i am stuck at this expression. I dont really understand the meaning of the last term (Xij).

I already tried searching on google, but i didn't find anything that could help me.

I just need to know how to evaluate that last term, Thanks.

Expression

share|improve this question
1  
Where did you get this equation from? –  Sanath Devalapurkar Feb 1 at 0:17

1 Answer 1

A symbol with two indices often denotes the components of a matrix - you can think of it as a two dimensional array. From the equation it looks like $c_jx^j_i$ is a matrix multiplying a vector from the right.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.