1)   Advanced Grapher 2.11
Graphing, curve fitting and calculating software. Graphs Cartesian, polar and parametric functions, graphs of tables, implicit functions and inequalities. Calculus features: regression analysis, derivatives, tangents, normals and more.

 2)   Excel Loan Amortization Calculator Template Software 7.0
Create custom loan layouts in MS Excel. Excel 2000 or higher required.

 3)   Difference Between Two Dates Software 7.0
Find the number of years, months and days between two dates.