solve block question
solve block question
(OP)
When solving a system of simultaneous equations, do the variables need to be unitless?
I have a system of six equations with six unknowns in a solve block. At the end of the solve block {i.e. find u,v,w,x,y,z) = }One of the arguments highlights and I get an error message that says "The units in this expression do not match those of the others in the list".
I have a system of six equations with six unknowns in a solve block. At the end of the solve block {i.e. find u,v,w,x,y,z) = }One of the arguments highlights and I get an error message that says "The units in this expression do not match those of the others in the list".
RE: solve block question
If you are returning more than 1 variable from a Find(), then it'll wind up in a matrix at the output, where the units must all be the same.
TTFN
RE: solve block question
Steve
RE: solve block question
I can see some problems with matrix multiplication, for example, if units are not consistent in each matrix.
Unless of course your matrix is actually just a big table or array of numbers treated as one block for convenient indexing.
Bung
Life is non-linear...
RE: solve block question
AFAIK, that's about the only way, i.e., normalizing the units
Bung,
AFAIK, there's no obvious physical problem with that sort of solution. It's basically an artifact of the way Mathcad outputs results from a Solve block and a limitation that Mathcad imposed on arrays.
TTFN
RE: solve block question
Cheers
Greg Locock