Now the calculation utilities Harry dropped off. These utilities are generally pretty short, and you can use them in a variety of ways. You might modify the reporting utilities to retrieve a value you need, use them as is or build them into command macros. The first utility is Compute Arc Values (Tip #2091) from Derek Beals, which computes one of the values of an arc given the others. This program runs as you load the LSP file and displays the results of the calculations in an alert box. Calculations include arc length given included angle and radius, included angle given radius and arc length, and radius given arc length and included angle. You don't find these calculations on many calculators even though they are pretty simple.