Hi, I thought I'd have a go at producing some calculations using XLC and as I am teaching the topic of Combinations and Permutations I used these formulas to have a go.
I was able to name the variables n and r easily enough and I was able to do the formulas using OVD() and UND() functions but as the formulas use factorial, which has the formula FACT() in Excel,when I use the "show equation" button it prints is using fact and not the exclamation mark notation for factorial which we use in Mathematics and Statistics.
Also the notation for Combination that we use frequently is nCr where the n should be superscript and the r subscript. Can I do this?
I know these calculations are very basic stuff but this is about as hard as some calculations get in High school maths!
Hope someone can help

Alison it great to see XLC being used in schools so thanks for the question. XLC will not rename the Excel's Fact() function but here is a work around. Name a cell manually "n!=" (note if the cell is named "n! =" it will be automatically subscripted which is XLC's default behaviour - omitting the 'space' before the "=" allows you to format an name any way you like - then the name is dragged into equations). This is covered in the online help just below the flash tutorial. http://www.excelcalcs.com/content/view/52/126/

I have amended and attached your calculation. I have also taken a stab at formatting nCr - but I am not totally sure what you want to achieve her. This should keep you going - keep on opening the miraculous world of maths to our young people!