The term in brackets in Equation (2-7) is the conversion factor referred to as the uniform series present worth factor (USPWF). Simplify to obtain the expression for P when i ≠ 0 (Equation (2-7)). To simplify Equation (2-6) and obtain the P / A factor, multiply the n -term geometric progression in brackets by the (P/F, i %,1) factor, which is 1/(1 +i). The terms in brackets are the P / F factors for years 1 through n, respectively. An expression for the present worth can be determined by considering each A value as a future worth F, calculating its present worth with the P / F factor, Equation (2-3), and summing the results. The equivalent present worth P of a uniform series A of end-of-period cash flows (investments) is shown in Figure (2–2 a). Uniform Series Formulas (P/A, A/P, A/F, F/A) Using Spreadsheets for Present Worth Analysis. Present Worth Analysis of Different-Life Alternativesĥ. Present Worth Analysis of Equal-Life Alternatives.Ģ. Reconciling Compounding Periods and Payment PeriodsĤ.ğormulation Equivalence Calculations Involving Only Single Amount Factorsĥ.Ğquivalence Calculations Involving Series with PP ≥ CPĦ.Ğquivalence Calculations Involving Series with PP ġ. Nominal and Effective Interest Rate Statementsģ. Using ROR analysis to evaluate a single projectġ. Using Spreadsheets for Equivalency Computation.ġ.Ědvantages and Uses of Annual Worth Analysisģ.Ğvaluating Alternatives Based on Annual Worth.Ģ.1 ROR calculation using a PW or AW relationĢ.2 ROR calculation using a PW or AW relationģ. Calculations for Cash Flows That Are Shifted.Ħ. Arithmetic Gradient Factors (P∕G and A∕G).ĥ. Uniform Series Formulas (P/A, A/P, A/F, F/A).ģ. Factors: How Time and Interest Affect MoneyĢ.Minimum Attractive Rate of Return (MARR).Ĩ. Cash Flows: Their Estimation and Diagramming (CFD).ħ. Interest Rate and Rate of Return (ROR).Ħ. Performing an Engineering Economy Study.ģ. Engineering economics: description and role in decision making process.Ģ.
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