Texas Instruments TI-15 Calculator User Manual
Contents
1. Product Service Customers in the U S and Canada Only Always contact Texas Instruments Customer Support before returning a product for service Customers outside the U S and Canada Refer to the leaflet enclosed with this product or contact your local Texas Instruments retailer distributor Other TI Products and Services Visit the calculator home page on the World Wide Web www ti com calc Warranty Information Customers in the U S and Canada Only One Year Limited Warranty for Electronic Product This Texas Instruments 1 electronic product warranty extends only to the original purchaser and user of the product Warranty Duration This TI electronic product is warranted to the original purchaser for a period of one 1 year from the original purchase date Warranty Coverage This electronic product is warranted against defective materials and construction THIS WARRANTY IS VOID IF THE PRODUCT HAS BEEN DAMAGED BY ACCIDENT OR UNREASONABLE USE NEGLECT IMPROPER SERVICE OR OTHER CAUSES NOT ARISING OUT OF DEFECTS IN MATERIALS OR CONSTRUCTION Warranty Disclaimers ANY IMPLIED WARRANTIES ARISING OUT OF THIS SALE INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURATION TO THE ABOVE ONE YEAR PERIOD TEXAS INSTRUMENTS SHALL NOT BE LIABLE FOR LOSS OF USE OF THE PRODUCT OR OTHER INCIDENTAL OR CONSEQUENTIAL COSTS EXPENSES OR DAMAGES INCURRED2. and then press 1 Io 100 1000 0 1 0 01 or 0 001 The answer appears briefly and then clears so you can press another digit or place value key the E function is active itis not necessary to press this key before each digit or place you wish to examine for a given number You need to press before entering a new number to analyze and then activate Ml again To exit the Mil feature press Gea Error Conditions Arith Error Arithmetical error Syn Error Syntax error 0 Error Attempting to divide by zero Mem Error Error in attempting to store entry in memory Error Error following steps for using Op1 or Op2 Overflow Overflow Error Underflow Underflow Error In some cases Gea restores the last display before the error message appeared Errors appear in history as Error Battery Replacement Place protective cover over the TI 15 and lay the calculator face down Remove screws from back of case using a small Phillips screwdriver Carefully separate front from back starting from the bottom Caution Be careful not to damage any internal parts Remove old battery using a small Phillips screwdriver if necessary Replace with new battery Replace back of case Caution Avoid conta
3. Fix in conjunction with place value keys to specify a given number of places The internally stored value is not rounded The calculated value is padded with zeros as needed Y ou must press Fix again each time you change the number of places Keys Action 000 Rounds in thousands 1 100 Rounds hundreds lg Rounds in tens SIE Rounds in ones 01 Rounds to nearest tenth ix 0 01 Rounds to nearest hundredth 0 001 Rounds to nearest thousandth SE Removes fixed decimal setting These place value keys also work with WU see below 2 The function lets you practice and test your skills in arithmetic You can choose either Auto or Man mode In Auto mode default the 11 15 presents problems with one element missing for example 5 2 or 5 7 or 5 2 7 You can select the type of problem and choose from three levels of difficulty The default is addition at level 1 Level of Difficulty While press MO to access the menu list and press 0 or to select the desired level of difficulty 1 2 or 3 Then press Enter odd and the TI 15 will present problems at the selected level Type of Problem While in press Made to access the menu list and press 0 to select the
4. Texas Instruments retailer distributor US 15 RG 1L1 A 0004002 Frac gt Page 3 NM MR MC US 15 RG 1L1 A Clear Op 001 5 001 Opl 0p2 x 2 002 Op2 O
5. Value VEITH 1000 001 16 C 02 007 0001 While in Man mode you can determine the place value of a digit determine how many ones tens hundreds thousands tenths hundredths and thousandths a number contains or determine which digit of a given number is in a specified place Determine Place Value After entering a number you can determine the whole number place or the decimal place of a given digit by pressing Mil and then pressing the digit in question If you have a number with a repeated digit when you press this digit the Tl 15 analyzes its right most occurrence To find the place value of those to the left press the given digit again before the answer appears Each time you press the given digit succession the display shifts to the next occurrence of this digit to the left and shows the place value for this occurrence gt While Man mode you can access a Place Value menu by pressing MYO Find out how many ones tens hundreds thousands enths hundredths or thousandths a number contains default If necessary press select the 11 setting and press Et Enter the number to be analyzed press and then press TU 10 100 1000 01 0 01 or 0001 e Find out what digit of a number is in a specified place Press odd Enter select the 1 setting and press Enter Mods Enter the number to be analyzed press i
6. accepts only non negative integers in this mode You indicate missing element with 2 In Man mode it is possible to enter a problem that has one solution multiple solutions or no solution The TI 15 tells you how many solutions the problem has Problems with one missing element generally have only one solution You get three tries After three incorrect answers the calculator displays the correct answer and then clears so you can enter a new problem Problems with two missing elements have multiple solutions For example 5 has 6 solutions x 24 has 8 solutions In this type of problem the question marks replace the operands they may not appear in the place of the operator or the answer These problems are not cleared after a correct solution or after three incorrect answers the problem remains so you can enter other solution sets until you clear the problem manually by pressing Gea e When the answer to a problem is not a positive integer such as 9 2 the 11 15 indicates that it has zero solutions Butif you enter answers it will tell whether they are greater than or less than the correct answer Inequalities Instead of entering an equation you can test an inequality using You get only one try because the inequality statement is either true or false With inequalities you can enter decimals Press gt once lt and press twice for gt To exit Problem Solving press again Place
7. 48 5 INSTRUMENTS TI 15 Calculator and Arithmetic Trainer Copyright 1999 Texas Instruments Incorporated General Information The TI 15 has two power sources battery and solar It operates in well lit areas using solar cell and it operates in other light settings on battery Examples See the Examples page for representative problems and keystroke sequences that demonstrate many of the 11 15 5 functions and capabilities Before starting each problem set reset the calculator by pressing and simultaneously to help ensure that your displays are the same as those shown in the examples In Problem Solving Auto mode however displays will vary from those shown because these problems are random Basic Operations To turn the TI 15 on press If the calculator is on press to turn it off ARD Automatic Power Down turns off the TI 15 automatically if no key is pressed for about 5 minutes Press after APD to power up again the display pending operations settings and memory are retained Display and Scrolling 01015162 The 11 15 has a two line display each line has room for 11 characters Entries that do not fit on the first line wrap to the second and then scroll when the second line is filled Exception When computing fractions the TI 15 displays only one line which scrolls when a problem exceeds the capacity of the line Entries can be up to 88 characters Exceptions In Stored Operations the l
8. BY THE CONSUMER OR ANY OTHER USER Some states provinces do not allow the exclusion or limitation of implied warranties or consequential damages so the above limitations or exclusions may not apply to you Legal Remedies This warranty gives you specific legal rights and you may also have other rights that vary from state to state or province to province Warranty Performance During the above one 1 year warranty period your defective product will be either repaired or replaced with reconditioned model of an equivalent quality at TI s option when the product is returned postage prepaid to Texas Instruments Service Facility The warranty of the repaired or replacement unit will continue for the warranty of the original unit or six 6 months whichever is longer Other than the postage requirement no charge will be made for such repair and or replacement strongly recommends that you insure the product for value prior to mailing Software Software is licensed not sold TI and its licensors do not warrant that the software will be free from errors or meet your specific requirements All software is provided AS IS Copyright The software and any documentation supplied with this product are protected by copyright All Customers Outside the U S and Canada For information about the length and terms of the warranty refer to your package and or to the warranty statement enclosed with this product or contact your local
9. actions is active In Problem Solving function is in Auto mode I Integer division function is active appears only when cursor is over the division sign Results of division will be displayed in d fraction format Nn The fractional result can be simplified d ay More entry history or menus are available Press or to access lt gt An entry or menu extends beyond the capacity of the screen Press to scroll Mode Setting Menus Menu Choices Displayed Decimal or fraction display HOO 1 Show or hide in Op DOO OP1 2 Clear stored Op WOOO N Y Select or reject Reset Frac Select format of fractions Paco Auto Simplification procedure doe Auto Automatic or Manual DO 123 Level of difficulty Type of operation k mpfen 11 1 Value function Press 0 to underline a menu item To select the underlined item press EZ To exit press oda Order of Operations The 1 15 uses the Equation Operating System EOS to evaluate expressions Expressions inside parentheses Functions that need a and precede the argument Fractions Exponentiation and roots 4 Negation Multiplication implied multiplication division Addition and subtraction Conversions U n d lt n d FD Enter completes all operations HOKE Ente
10. contains value other than 0 M displays on the screen To recall the value from memory for use in a calculation press once To clear memory press Fac 1 Stored Operations Op1 and Op2 each can store an operation with a constant value which you can repeat by pressing only one key as many times as desired 1 Press 001 or 0p2 2 Enter the operator first x Int or and then the number 3 Press 001 0021 4 Initialize with a starting value 5 Each subsequent time you press 001 or 0 2 the Operation with the constantis applied The computation with the stored operation appears on the first line of the display and the result appears on the second line If you don t want the computation line to display press to hide it Or if the expression does not fit on the line it will not show When space permits a counter on the second line shows how many times you have pressed 001 or 002 To clear the contents of Op Op2 press Made select Op1 or and press Ewer Then press to return to the last result display Rounding 5 1000 00 10 C ot 0 01 0 00 You can round results with
11. ct with other 15 components while changing the battery If necessary press and Gea at the same time to reset the 11 15 clears memory and all settings Caution Dispose of old batteries properly Do not incinerate batteries or leave where a child can find them In Case of Difficulty Review instructions to be certain calculations were performed correctly Press 8 and Gea simultaneously This clears all memory and settings Check the battery to ensure that it is fresh and properly installed Change the battery when does not turn the unit on or The screen goes blank or e You get unexpected results To continue using the 11 15 until you can change the battery 1 Expose the solar panel to brighter light 2 Press and simultaneously to reset the calculator TI Product Service and Warranty Information Product Support Customers in the U S Canada Puerto Rico and the Virgin Islands For general questions contact Texas Instruments Customer Support phone 1 800 TI CARES 1 800 842 2737 e mail ti cares ti com For technical questions call the Programming Assistance Group of Customer Support phone 1 972 917 8324 Customers outside the U S Canada Puerto Rico and the Virgin Islands Contact TI by e mail or visit the TI calculator home page on the World Wide Web e mail ti cares ti com Internet www ti com calc Page 2 TI Product Service and Warranty Information continued
12. desired type of problem addition subtraction multiplication division or find the operator Then press Eater od and the TI 15 will present problems of the selected type 1 You enter an answer 2 If your answer is correct the display shows Yes clears the screen and presents another problem 3 If your answer is not correct the display shows No and indicates whether the correct solution is less than or greater than the answer that you entered 4 The incorrect answer is cleared from the display and you enter another answer to that same problem 5 If you enter three incorrect answers to a given problem the 11 15 shows the correct answer clears that problem and presents a new problem Scoreboard The 1 15 shows a Scoreboard after every fifth problem Every correct solution you have entered registers Yes the Scoreboard and three incorrect answers in a row register one No After 100 the Scoreboard returns to zero Problem Solving US 15 RG I1L1 A Problem Solving continued When you first enter and when you press ege the display shows the Scoreboard for a moment before presenting problems or before showing the menu In Man manual mode you compose your own problems While in press to access the menu list and press to select Man Then press and the TI 15 is ready for you to enter your problem and your solution It
13. fication method default requires manual simplification of fractions Auto automatically reduces fraction results to lowest terms 0 indicates that fraction results can be simplified Simp enables you to simplify a fraction manually isplays the factor that was used to simplify a fraction in your last manual simplification step Press again to restore the fraction to the screen Uga converts a mixed number to an improper fraction or an improper fraction to a mixed number converts a fraction to a decimal or converts a decimal to a fraction if possible If a problem contains both fractions and decimals the results are displayed in decimal format However if you press and select n d the results of division will be displayed in fraction format when possible Percents Press after a entering a value to calculate a percent Press kal to convert a decimal or a fraction to a percent Roots and Powers _ lets you obtain the square root of a number After entering the number be sure to close the parentheses A raises a number to the power you specify enters the value of 70 which is stored internally to 13 digits 3 141592653590 In some cases results display with symbolic 7 and in other cases as a numeric value After a calculation press to store the displayed result in memory If memory already contains a value the new one will replace it When memory
14. imit is 44 characters In Man mode entries do not wrap entries cannot exceed 11 characters When a result exceeds the capacity of the screen it is displayed in scientific notation However if the result is greater than 1099 or less than 10 99 you will get an overflow error or underflow error respectively Scroll with and Press 0 to scroll through entries or to move the underscore within a menu list and to scroll through history or within a menu to move to the next level of menu lists Clearing Correcting and Resetting Deletes the character to the left of the cursor In fractions clears from right bottom to left top Clears display and error condition Does not clear value from memory Clears value from memory To reset hold down and simultaneously for a few seconds and release MEM CLEARED displays This completely clears the calculator and restores all default settings You can also reset using the Mode menu see below Ga US 15 RG 1L1 A Display Indicators Indicator Definition Calculator is in Problem Solving mode a Calculator is in Place Value mode Fix Calculator is rounding results gt has been pressed M A value other than zero is in memory Op1 Op2 Stored operation function is active Auto In calculator mode Auto simplification of fr
15. pl Mow 42 394 97 38 2 Enter 1000 1000 Page 4 CH 0 123 QOQ Go Mod A Ewer Wid God gt 00 Enter 48 5 INSTRUMENTS Copyright 1999 Texas Instruments Incorporated Texas Instruments 7800 Banner Dr Dallas TX 75251 U S A www ti com calc Texas Instruments Holland Rutherfordweg 102 3542 CG Utrecht The Netherlands US 15 RG 1L1 A Page 5
16. rs numerals 0 through 9 Basic Arithmetic Adds subtracts multiplies divides Inserts decimal point Enters a negative sign Does not actas an operator Opens closes a parenthetical expression Completes all operations Integer Division When you divide a positive whole number by a positive whole number with Int the result is displayed the form Qr R where Q is the quotient and R is the remainder If you use the result of integer division in a subsequent calculation the 1 15 uses only the quotient the remainder is dropped Fractions Press after entering a number to designate the numerator of a fraction Press a after entering a number to designate the denominator of a fraction Both numerator and denominator must be integers If you enter a denominator greater than 1000 or if a calculation yields a denominator greater than 1000 the TI 15 displays results in decimal format You can input either the numerator or the denominator first Unit separates the whole number from the fraction in a mixed number Frac displays a menu that lets you specify how fraction results are displayed U default displays results as mixed numbers e n d displays results as simple improper fractions displays a menu that lets you specify the simpli
Download Pdf Manuals
Related Search