as one of my weak points with Mathcad is the symbolic solvers.
Maybe because the symbolic solver is one of the weak points of Mathcad ;-)
Did you use the first row of numbers in the matrix because they relate to the x-axis?
No and yes ;-)
No, I used the first colum (for the integration interval) and
yes, I did that because the first column represents the abscissa values.
solve results one solution per row, wheras Find one solution per column.
I have not yet found a way to limit the results of the symbolic evaluated Find() to the two real ones.