This Microsoft Add-In provides very powerful unit conversion functionality. New derived units can be generated on the fly (e.g. kg.m/s). Dimensional Analysis is used to ensure that the conversion is legitimate. Help text and examples are supplied.
EzCalc Pro just may be the most feature rich scientific calculator you have ever seen! Mind boggling capabilities with Integrated Spreadsheet and 3D Plotter!
Download very user friendly Loan Amortizer. It has the following features `extra payments, skipped payments, late payments, lump sum payments, graphs, interest rate change, country compounding, and much more`.