MathCAD 13 lsolve()

Hi there,

I am working with multiple version of MathCAD (don't ask my why, I know it is stupid but I have no other choice) to construct some worksheets (version 13.1 and 14).

Now, in one worksheet I use the function 'lsolve()' to solve linear system of equations Ax=b. Where 'A' is an mxn matrix with m>n and 'b' is an 'mx1' matrix.

In MathCAD 14, the 'help' explains that, if the system of equations is inconsistent (e.g. if m>n) lsolve returns the least-squares solution of the system. In the help of MathCAD 13 this is not stated.

My question now is, what does lsolve() return in MathCAD 13 if the system of equations is inconsistent?

thx,

rubseveni