Equation as text using trial and error

Please find attached MATHCAD sheet.

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Khalid Shaikh wrote: Hi, I wanted a equation as text which should appear when a situation/ condition is satisfied. Please find attached excel sheet for the same. Below are few examples as to explain the requirement/question. Example1 :- in this example L1<z1, hence the limit of integration of I1 changes from 0 to L1 in first equation. I got the solution i.e the value of I1,  but for representation I require the equation too in the MATHCAD sheet. as shown in the example. Therefore, the value along with equation should appear on the sheet. z1=12m, z2=15m, z3=18m, z4=20m,z5=20m Example2 :- in this example z1<L1<z2, hence the limit of integration of I2 changes from z1 to L1 in first equation.. Example3 :- in this example z2<L1<z3, hence the limit of integration of I3 changes from z2 to L1 in first equation. Example4 :- in this example z4<L1<z5, hence the limit of integration of I5 changes from z4 to L1 in first equation Thank you for your help.

I'm afraid that I can't work out what you mean by "write the equation" - I can't find anything marked as such in the thread messages or the worksheet.  Could you please point me to where you have written what you want returning?  Is it in the Excel workbook that you mention?  If so, it doesn't appear to have attached to the message when I look at it.  Or do you mean the list of layers and their respective frictions at the bottom of the Mathcad worksheet?

Here' one approach you might want to think about, though.  I'd be tempted to convert your equations into something that would be easier to calculate in a loop; this would mean you could change the number of layers without too much further work.

Stuart