Casio FX-CG10 Software User Guide - Page 268
Compound Interest
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• An error occurs if parameters are not configured correctly. Use the following function menus to maneuver between calculation result screens. • {REPEAT} ... {parameter input screen} • {GRAPH} ... {draws graph} After drawing a graph, you can press !1(TRACE) to turn on trace and read calculation results along the graph. Each press of e while trace is turned on cycles the displayed value in the sequence: present value (PV) → simple interest (SI) → simple future value (SFV). Pressing d cycles in the reverse direction. Press J to return to the parameter input screen. 3. Compound Interest This calculator uses the following standard formulas to calculate compound interest. u PV, PMT, FV, n I % ≠ 0 PV = - (α × PMT + β × FV) FV = - PV +α × β PMT I % = 0 PV = ï (PMT × n + FV ) FV = ï (PMT × n + PV) α = (1+ i × S) × 1 1 + i) -n i { 0 .........Payment : End (Setup Screen) S = 1 .........Payment : Begin (Setup Screen) PMT = - PV + β α × FV { } log (1+ iS) × PMT - FV × i (1+ iS) × PMT + PV × i n = log (1+ i) PMT = - PV + FV n n = - PV + FV PMT { I% 100 (P/Y = C/Y = 1) i = C/Y (1+ I% )P/Y -1..... (Other than 100 × [C/Y ] those above) 7-4