A

222Assistance, Batteries, Memory, and Service

222Obtaining Help in Operating the Calculator

222Answers to Common Questions

224Power and Batteries

224Low-Power Indications

225Installing Batteries

227Managing Calculator Memory

228Resetting the Calculator

230Erasing Continuous Memory

231Clock Accuracy

231Environmental Limits

231Determining If the Calculator Requires Service

232Confirming Calculator Operation: Self-Test

233Warranty

235Service

236Regulatory information

237Noise Declaration

B

238More About Calculations

238IRR% Calculations

238Possible Outcomes of Calculating IRR%

239Halting and Restarting the IRR% Calculation

239Storing a Guess for IRR%

240Solver Calculations

240Direct Solutions

242Iterative Solutions

246Equations Used by Built-in Menus

246Actuarial Functions

247Percentage Calculations in Business (BUS)

247Time Value of Money (TVM)

247Amortization

248Interest Rate Conversions

10 Contents

File name : 17BII-Plus-Manual-E-PRINT-030709

Print data : 2003/7/11