linear equation codes

[minami]

hi,
i wanted to ask a question, i have a series of linear equations (ie. y=ax+b) i wanted to combine them into one expression, i have searched in matlab help, it show how to solve the eqts simultaneously (finding x and y) using the function X=A\B. i was wondering if there is a function that i can use to combine these equations into one equation and plot that equation in a graph. i was thinking after finding X, then i put the function plot(X), but i am not really sure if it is right.
any help would be appreciated

 

[electricpete]

It's hard to figure out what you're asking.
If you have Ax = B, then x = A\B

If you get some error, make sure A is NXN and B is 2X1
rank(A) should be N


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[electricpete]

Correction in bold:

If you have Ax = B, then x = A\B

If you get some error, make sure A is NXN and B is NX1
rank(A) should be N

=====================================
Eng-tips forums: The best place on the web for engineering discussions.