Mathcad calculation won't result in array

[mrlazies]

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the above outlines the problem I am having in mathcad. I would like my file to calculate the result of my Fcr2 and Mn2 in a 40x1 array. I don't understand why this was successful in the second picture but not in the first. The best insight I can give is that when I delete the second Lb variable in the Fcr2 equation I get the array output I'm looking for; dissolving the equation into A and B demonstrates the problem.

I would greatly appreciate help with this issue, thank you.

 

[structSU10]

If there are multiple variable that are an array, you must use a matrix subscript when they are in an equation so mathcad knows how to perform the operation. That is why A*B only gives one answer. you must define a range variable like k:= 0,1; last(A) , and then write your equation A[k*B[k. (note I typed the previous as I would in mathcad). Your second equation worked because it would appear that Lb is the only array in the equation, so mathcad automatically knows what values to multiply.