Undefined Variable Issues

[DanielBaker]

I'm trying to perform simple arithmatic problems using MathCAD using many different variable names. However, when I try to use a variable like "ALLL" or "Xtotal" MathCAD will highlight the letters or word that is subscripted and say "This variable is undefined" and will not calculate the equation. Is there a way to fix this? Im new to MathCAD, so if anyone has any suggestions I greatly appreciate it. Also, I attached the worksheet I'm working on, so if you have any suggestions as to how to set up my work in a more consice manner I'd greatly appreciate it.

Thank you,

Dan

[ValeryOchkov]

Mathcad has two type if index:

x[n - n-th element of vector x

x.n - part of variable name xn.

I think you must use not LL[4(4) but LL.4[4 etc

Now you have LL[4(4) - LL[4*4 Etc

[MikeArmstrong]

Daniel,

Have a look at the attached. You could use special k mode.

Mike