lsolve with known values
lsolve with known values
(OP)
Hi,
I am trying to solve a linear system of equations with lsolve but there are certain values of the solution that are known.
How can I do this?
Thanks
I am trying to solve a linear system of equations with lsolve but there are certain values of the solution that are known.
How can I do this?
Thanks





RE: lsolve with known values
rjw57
RE: lsolve with known values
since lsolve is a linear solution to a perfectly conditioned problem then it doesn't matter if you already know one of the answers, it should come out the same again.
Second thought: substitute your known value into the equations and then tidy them up. This will give you a smaller matrix to solve
Cheers
Greg Locock
RE: lsolve with known values
I should have specified this in my first post.
I want to solve Kx=F for x so
x:=lsolve(K,F)
very simple, but I have restrictions for x, ie. x1=0 and x5=3.5. How do I specify this?
I have also tried the Given/Find block but it only spits out my initial guesses no matter what they are.
any help would be great.
Thanks
René