Solved
Lookup Mathcad 15 to prime
Hi
i have problem, i don't have same result with lookup function on MC15 and Prime 4
On Prime
The matrix A is same matrix to MC15
The convert tool doesn't work 
The tolerance system variable is set to 0.001.
Try (at the top of the sheet) typing, "TOL := 10^-8"
That (surprisingly) can sometimes make a difference
