# Engineering Economics app now available for the TI-Nspire CX – Step by Step Solutions

Engineering Economics has become very easy now when using the new TiNspire CX app

FUNCTIONALITY & MENU ITEMS OF THIS APP :

- Future Value & Compound Interest
- Effective Interest Rate
- Nominal Interest Rate
- Compute Inflation Rate
- Investment Worth after Inflation
- Investment Worth after Inflation & Tax
- Depreciation : Straight Line Method
- Depreciation : Sum of Years Digits
- Depreciation : Reducing Balance Method
- Income Tax Calculation
- Compute any Rate [%] by Definition
- Present Value of Perpetuity
- Simple Interest I=P*r*t
- Compounded Interest: A=P*(1+r)^t
- Compounded Interest=P*(1+r)^t-P
- Compounded Continuously A=P*e^(r*t)

Cash Flow / Capital Investment
- Geometric Gradient of Payments (P/A)
- Equal Payment: Present Worth (P/A)
- Equal Paym: Capital Recovery (A/P)
- Equal Paym: Sinking Fund (A/F)
- Equal Paym: Compound Amount (F/A)
- Arithmetic Gradient to Uniform Series (A/G)
- Arithmetic Gradient Present Worth (P/G)
- Single Payment Compounded: (F/P)
- Single Payment Present Worth: (P/F)
- Solve for V: A=B*v+C
- Equivalent Annual Cost EAC
- Equivalent Annual Cost EAC + Cost
- V1+V2*(A/P)+V3*(A/F,i,n)+V4*(A/G,i,n)
- V1+V2*(P/A)+V3*(P/G,i,n)+V4*(P/F,i,n)

Economical Calculations 1
- Marginal Profit
- Marginal Revenue
- Break Even Point R=C
- Demand Analysis
- Economic Order Qty
- Continuous Income Stream
- Price Elasticity
- Find Equilibrium of Supply & Demand
- Consumer Surplus
- Producer Surplus
- Consumer & Production Surplus
- Real vs Nominal GDP

- Cobb-Douglas Prod.
- Gini Coefficient
- Differentials
- Logistic Differential Equation
- Simplex Algorithm
- Average Tax Rate
- Marginal Tax Rate
- Price Index
- Real GDP – Expenditure Approach
- Real GDP – Income Approach
- GDP Deflator: Nominal GDP -> Real GDP
- Compute any Rate [%] : Labor
- Nominal & Real Interest Rate
- Unemployment Rate

- Solve any Equation
- Solve using the Rule 72
- Solve Money/Exponential Growth Problems
- Geometric Sequence & Series
- Sigma S-Notation

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