TI-Nspire Engineering Economy Formulas and Shortcuts
TI-Nspire Engineering Economy Cheat Sheet
The Master Tools (F and G)
The Golden Rule: Look at the factor attached in the menu. The letter on the bottom of the fraction dictates what goes in that V slot.
Tool G: Present Worth (PW) Master Tool
Use to pull all money to Year 0 (today).
- Menu: V1 + V2*(P/A) + V3*(P/G) + V4*(P/F)
- V1 [No Factor]: Initial Investment (P). (Usually negative)
- V2 (P/A): Base Annual Income/Expense (A).
- V3 (P/G): Gradient Amount (G). (Amount A changes each year)
- V4 (P/F): Salvage Value / Future Value (F).
Tool F: Annual Worth (AW) Master Tool
Use to flatten all money into equal yearly amounts.
- Menu: V1 + V2*(A/P) + V3*(A/F) + V4*(A/G)
- V1 [No Factor]: Base Annual Income/Expense (A).
- V2 (A/P): Initial Investment (P). (Usually negative)
- V3
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