USER’S GUIDE — 91ACCURACY/ERRORSAccuracy/Display Capacity — Your calculator has a twelve-digitdisplay made up of eight digits (normal display) and four fractionaldigits. You may enter or calculate values up to 19,999,999.99. Eachcalculation is carried out internally to twelve digits.Errors — When an incorrect entry is made, or the answer is beyondthe range of the calculator, it will display the word “ERROR.” To clearan error condition you must hit the o button once. At this pointyou must determine what caused the error and re-key the problem.Error CodesDISPLAY ERROR TYPEOFLO Overflow (too large)MATH Error Divide by 0DIM Error Dimension errorENT Error Invalid entry errorTRIG Error Trig. error (for example, tan of 1 foot)None Attempt to calculate stairs without enter-ing riseand runAuto-Range — If an “overflow” is created because of an input andcalculation with small units that are out of the standard seven-digitrange of the display, the answer will be automatically expressed inthe next larger units (instead of showing “ERROR”) — e.g.,20,000,000 mm is shown as 20,000 m. Also applies to inches, feetand yards.Note: If Exponential Notation is activated through the Preference Setting, the valuewill be shown in scientific notation (e.g., 20 million mm—2.00000 07 mm).AUTO SHUT-OFFYour calculator is designed to shut itself off after about 8-12 minutesof non-use.APPENDIX E —ACCURACY/ERRORS,AUTO SHUT-OFF, BATTERIES, RESET
