•ty Texas Instruments

TI-30XHB

and

TI-30XHS

Scientific Calculators

© 1999Texas InstrumentsIncorporated

General Information

Examples:See the last page of these instructions forkeystroke examples thatdemonstrate many oftheTI-30X n functions. Examples assume alldefault settings.

Ion] turnson theTI-30XII. [2nd] [off] turns itoffand clearsthe display.

APD™ (Automatic PowerDown™) turnsoffthe TI-30XIIautomatically ifno keyis pressed forabout5 minutes.Press[M]afterAPD. Thedisplay, pending operations,settings, and memory are retained.

2-LineDisplay:The first line(Entry Line) displays an entryofupto 88digits (or47 digits forStat or ConstantEntryLine). Entriesbeginon the left; those withmore than 11digits scroll to theright. Press© and0 toscroll the line.Press [2nd] 0 or [2nd] 0 to movethe cursorimmediately tothe beginning orend ofthe entry.

Thesecondline (Result Line)displaysa resultofup to 10digits,plusa decimalpoint,a negative sign, a "x10"indicator, and a 2-digit positiveor negative exponent.Results thatexceed the digit limit are displayed inScientificNotation.

Indicator Definition

2nd 2nd function.

HYP Hyperbolic function.

FIX Fixed-decimal setting.

SCI, ENG Scientific or EngineeringNotation.

STAT Statistical mode.

DEG, RAD,

GRAD

Angle mode(degrees, radians,orgradients).

K Constant mode is on.

X10 Precedes the exponentinScientific orEngineering Notation.

t 1 Anentryis stored inmemory beforeand/orafter the active screen. Press © and © toscroll.

-» *- Anentry or menu displays beyond 11 digits.Press© or0 toscroll.

2ndFunctions: [2nd] displays the2nd indicator, and thenselects the 2nd function (printedabove keys) of the nextkeypressed. Forexample, [2nd] [-T]25 \T\ FW"1calculates the square rootof25 and returnsthe result,5.

Menus: Certain TI-30XII keysdisplay menus:ImemvarI.[2nd] [RCL], [STOT], [2nd] [STAT], ISTATVARI, [2nd] [EXIT STAT],[PRBl, [DRGl, E3, [2nd] [R-P],[2nd) [SCI/ENG], [2nd) [FIX], and[2nd] [RESET].

Press © or0 to move the cursor and underlinea menuitem. Toreturn to the previous screen without selectingtheitem, press IclearI.

To select a menu item:

• Press lfc"IERl while the item is underlined, or• Formenu items followed by an argument value, enter the

argumentvalue whilethe itemis underlined.The itemandtheargument valueare displayed on the previous screen.

Previous Entries

After an expression is evaluated, use © and © to scrollthroughpreviousentries, whichare stored in the TI-30X nmemory. Youcannot retrievepreviousentries whilein STATmode. You can edita previous entryand press l^nni t0evaluate the newexpression.

ENG 30XII/OM/1L1/A

Last Answer [2ndl[ANSl

Themostrecently calculated result isstored tothevariableAns. Ans is retainedin memory, even afterthe TI-30X n isturned off. To recall the value of Ans:

• Press [2nd] [ans](Ansdisplays onthescreen), or• Pressanyoperations key(L±), Q, PvJO, etc.)as thefirstpartofan entry. Ans and the operatorare bothdisplayed.

Order of Operations

The TI-30XII uses EOST

evaluate expressions.(Equation Operating System)to

1st Expressions insideparentheses.

2nd Functions thatneed a) and precede the argument,such as sin, log, and all R<-»P menu items.

3rd Fractions.4th Functionsthat are entered after the argument, such

as x2and angle unitmodifiers (°'" r 9).

5th Exponentiation (A) androots (XV^).6th Negation (-). •7th Permutations (nPr) and combinations (nCr).8th Multiplication, implied multiplication, division.

9th Addition and subtraction.10th Conversions (A b/c*>d/e, F*>D, •DMS). ~11th \iNlUi\ completesalloperations and closes allopen

parentheses.

Clearingand Correcting

ICLEARI Clears an error message.

Clearscharacterson entryline.Movesthe cursor to last entry in historyonce display is clear.

Ideli Deletes the character at the cursor.Deletes allcharacters to the rightwhenyou hold down [del];then, deletes1character to the left of the cursor eachtime you press [del].

[2nd] [INS] Inserts a character at the cursor.

[2nd] [clrvar] Clears all memory variables.[2nd] [STAT]CLRDATA

Clearsalldata pointswithout exitingSTAT mode.

fJnd][EXlT STAT]Y Clears all datapoints and exits STATmode.

[2ndl [reset] Y Resets the TI-30XII. Returnsunittoor default settings; clearsmemory[on] &iclearj variables, pending operations, all entries

inhistory, and statistical data; clearsconstant mode and Ans.

Fractional calculations can display fractional ordecimalresults. Results are automatically simplified.•|a5£]entersa fraction. Press(M) between whole number,

numerator, and denominator. The unit, numerator, anddenominator mustbe positive integers.

•fjnd] [f«d] converts between fractions and decimals.•fjnd) [AVc^ii/e] converts between mixed numbersandsimplefractions.

7U=3.141592653590 for calculations.71=3.141592654 fordisplay.

AngleModes

IDRGl displays a menu tospecify theAngle mode asdegrees, radians,or gradients.

F*l displays a menu tospecify theAngle unit modifier-degrees(°),radians (r), gradients (9), or DMS (°'"). Italso letsyouconvertan angle to DMS Notation (>DMS).

Toset theAngle modeforany partofan entry:•SelecttheAngle mode. Entries are interpreted and resultsdisplayed according to the Angle mode,or

•Selecta unit modifier (°'") for anypartofan entry.Entrieswith unitmodifiers are interpreted accordingly,overriding the Anglemode.

To convert an entry:• Set the Anglemode to the unityou want to convert to.Then use a unitmodifier todesignate the unitto convertfrom. (Anglesof trigonometric functions convert valuesinsideparentheses first.), or

•Select •DMS, which convertsan entryto DMS (°'")Notation.

Trigonometry [SIN] [COS] [tan][2ndl[SI N-1][COS-1][TA N-i]

Entertrigonometric functions (sin,cos, tan, sin-', cos1, tan-1),justas youwould write them.Set the desiredAngle modebefore starting trigonometric calculations.

Hyperbolics [2ndTHYPl

[2nd] [hyp] displays the HYP indicator and accesses thehyperbolic function of the nexttrigonometry keythatyoupress. Angle modes do notaffecthyperbolic calculations.

Logarithms [LOG! M MhO'lle'l

Ilog Iyieldsthe common logarithm ofa number.

[ln] yields thelogarithm ofa number to thebase e(e=2.819291929).

(2nH)[iOx] raises10to the power you specify.

[2nd][ex] raisese tothe power you specify.

Rectangular<->Polar l5aifr»Pl

[2nd] [r-p] displays a menu to convert rectangularcoordinates(x,y) to polarcoordinates (r,9)or viceversa.Set Angle mode,as necessary, beforestartingcalculations.

Constants

[2nd] [k]turns Constant mode onandletsyou define aconstant.

To store an operation to Kand recallit:1. Press [2ndTKl.

2. Enterany combination of numbers, operators, and/orvalues,up to 44 characters, beginning with an operator.

3. Press \l"ltR\ tosave the operation. Kdisplays intheindicator line.

4. Eachsubsequenttime you pressfjggjj], theTI-30XIIrecallsthe stored operation and appliesitto the lastansweror the currententry.

Press [2nd] [k] again to turnConstantmodeoff.

Fractions (Ml rjnd][F«D] [2ndllAK<»te1 f^m Memory |MEMVAR| [sToE H[RCL][CLRVAR]TheTI-30X JJ has 5 memory variables—A, B,c, D, and E.You can store a realnumberoran expression that resultsina real numberto a memory variable.• ImemvarI accesses the menu of variables.

«|sto>| lets you store values to variables.• GEO [rcl] recalls the values ofvariables.•[2nd] [clrvar] clears allvariable values.

Notation [2nd][FIX] lJnd][sci/ENG] fJnd][EE]

[2nd] [fix] displays the Decimal Notation mode menu.Thesemodesaffect only thedisplay ofresults. F(default)restores standard notation(floating-decimal) format.0123456789 sets decimal places to n (0-9), retainingnumeric notation mode format.

[2nd] [sci/eng] displays the Numeric Notation mode menu.Thesemodesaffect only thedisplay ofresults.• FLO (default): Floating Notation, with digits totheleft and

rightof the decimal•SCI: Scientific Notation

• ENG: Engineering Notation (exponent is a multiple of3)

[2nd] [EE] entersa value inScientificNotation, regardlessofthe numeric notation mode. PressO before entering anegative exponent.

Pagel

Statistics |2WSTAT||EXITSTAT| [DATA] ISTATVAR]

1-VAR analyzes statisticaldata from 1 data set with1measured variable, x.2-VAR stats analyzes paireddatafrom 2 data sets with 2 measured variables—x, theindependent variable, andy, thedependent variable. Youcan enter up to 42 data sets.

Todefine statistical data points:1. Pressfjnd] [STAT], Select1-VAR or2-VAR and press

GZ2E3- TheSTAT indicator displays.2. Press [data].

3. Enter a value for Xi.

4. Press©.• In1-VAR stat mode,enter the frequency ofoccurrence(frq) ofthe data point. FRQ defaults. IfFRQ=0, thedata pointis ignored.

• In2-VAR stat mode,enter the valueforY1 and press

5. Repeat steps3 and4 until alldata points are entered.You must pressESEjj] or © to save the last data pointor FRQ valueentered. Ifyouadd or deletedata points,theTI-30X n automatically reorders thelist.

6. When allpointsand frequencies are entered:• Press IstatvarI todisplay the menuofvariables(seetablefordefinitions) and theircurrentvalues,or

• Press Idata| to return to the blank STATscreen. Youcan do calculations with data variables(x, y, etc.).Select a variable from the IstatvarI menu and thenpress I"'I*" [ to evaluate the calculation.

7. When finished:

• Press fjnd] [stat] and select CLRDATA to clearalldatapointswithout exiting STAT mode, or

•Press[2nd] [exitstat] [»%nq toclearall data points,variable and FRQ values,and to exitSTAT mode(STATindicator turnsoff).

Variables Definition

n Number of xor (x,y) data points.

xory Meanofallx or yvalues.

Sx orSy Samplestandard deviation ofx or y.

ox oroy Population standarddeviation of x or y.

ZxorZy Sum of all xoryvalues.Sx2or£y2 Sum of all x2 or y2 values.Zxy Sumof(x* y)for all xypairs.

Linear regression slope.

Linear regressiony-intercept.

Correlation coefficient.

x' (2-VAR) Uses a and b to calculate predictedx valuewhenyou input a y value.

y' (2-VAR) Uses a and 6 to calculatepredicted y valuewhenyou input an xvalue.

Probability

npr Calculates thenumber ofpossible permutationsofn itemstaken rat a time,givennand r.Theorder of objects is important, asin a race.

nCr Calculates thenumber ofpossible combinationsof n items taken rat a time, given n and r. Theorderofobjectsis not important, as ina hand ofcards.

I Afactorial is the product ofthepositive integersfrom1 to n. n must be a positivewhole number <69.

rand Generatesa random realnumberbetween0 and1. To control a sequence of random numbers,storean integer(seed value)> 0 to rand. Theseed value changes randomlyevery timearandomnumber is generated.

RANDI Generatesa random integerbetween 2 integers,Aand 6, where A< RANDI < 6. Separate the 2integers witha comma.

ENG 30XIJ/OM/1L1/A

ARGUMENT — A function does not have the correct numberofarguments.

DIVIDE BY 0 —

• You attempted to divide by0.• In statistics, n=1.

DOMAIN —You specified an argument toa function outsidethe validrange. Forexample:•For xtf x=0ory<0 and xnot an odd integer.• Foryx: yand x = 0; y <0 and x notan integer.• ForVx: x<0.• For LOG or LN: x < 0.

• For TAN: x = 90°, -90°, 270°, -270°, 450°, etc.•ForSIN-1orCOS-1: |x|>1.• For nCror nPr: n or r are not integers > 0.• Forx!: x is notan integer between 0 and 69.

EQUATION LENGTH error —Anentryexceeds the digitlimits (88forEntry Line and47 for Stator Constant Entrylines); forexample, combining an entrywith a constantthatexceeds the limit.

FRQ DOMAIN — FRQ value (in1-VAR stats) < 0 or >99, ornot an integer.

OVERFLOW —18|> 1e10,where6 is an angle ina trig,hyperbolic, or R>Pr( function.

STAT —

• Pressing IstatvarI withno defineddata points.• When not in STAT mode, pressingIdataI,IstatvarI, or

[2nd] [EXIT STATl.

SYNTAX —Thecommand contains a syntaxerror: enteringmorethan 23 pending operations or8 pending values;orhaving misplaced functions, arguments, parentheses, orcommas.

Battery Replacement

1. Usinga smallPhillips screwdriver, removescrews fromback case.

2. Remove protective cover. Starting from the bottom,carefully separate frontfrom back. Caution:Be carefulnotto damageany internal parts.

3. Using a smallPhillips screwdriver (ifnecessary),removeoldbattery; replacewith newone.

Caution: Avoid contactwith otherTI-30XIIcomponentswhilechangingthe battery.

4. Ifnecessary,press [M] and |clear| at the same time toreset theTI-30X n (clearsmemory and allsettings).

Caution: Disposeofold batteries properly. Donotincinerate batteries or leave where a child can find them.

InCase of Difficulty

Review instructions to be certain calculations wereperformed properly.

Press \M\ and ICLEARl at the same time. Thisclears allmemory and settings.

Checkthe battery toensure thatit is freshand properlyinstalled.

Change the batterywhen:•[on] does not turn the uniton, or•The screen goes blank, or•Youget unexpected results.

To continueusing the TI-30X IIS (Battery/Solar)* untilyou can change the battery:1. Exposethe solarpanelto brighter light.2. Press [on]andICLEARl at the same timeto reset the

calculator.Thisclears allsettings and memory.

• Operatesinwell-lit areas usingsolarcell. Operatesinother lightsettings using battery.

Tl Product Service and Warranty Information

Product Support

Customers in the U.S.,Canada, Puerto Rico,and the VirginIslands

Forgeneral questions, contactTexas Instruments CustomerSupport:

phone: 1-800-TI-CARES(1-800-842-2737)

e-mail: ti-cares@ti.com

Fortechnical questions, callthe Programming Assistance Group ofCustomer Support:

phone: 1-972-917-8324

Customers outside the U.S., Canada, Puerto Rico, and theVirgin Islands

ContactTlby e-mailor visitthe Tlcalculatorhome page on theWorld Wide Web.

e-mail:

Internet:

ti-cares@ti.comwww.ti.com/calc

Product Service

Customers in the U.S.and Canada Only

Always contactTexas Instruments CustomerSupportbeforereturning a product forservice.

Customers outside the U.S. and Canada

Refer to the leafletenclosed with thisproductor contactyourlocalTexas Instruments retailer/distributor.

Other Tl Products and Services

Visit the Tlcalculatorhomepage on the World WideWeb.

www.ti.com/calc

Warranty Information

Customers in the U.S.and Canada Only

One-YearLimitedWarranty for Electronic Product

ThisTexas Instruments (Tl*)electronic productwarranty extendsonlyto theoriginal purchaser and userofthe product.

WarrantyDuration. ThisTlelectronic product is warranted totheoriginal purchaser fora periodofone (1)year fromthe originalpurchase date.

Warranty Coverage. ThisTlelectronicproductiswarrantedagainstdefective materials and construction. THIS WARRANTY IS VOID IF

THE PRODUCT HAS BEEN DAMAGED BY ACCIDENT OR

UNREASONABLE USE, NEGLECT,IMPROPERSERVICE,OROTHER CAUSES NOT ARISING OUT OF DEFECTS IN

MATERIALS OR CONSTRUCTION.

Warranty Disclaimers. ANY IMPLIED WARRANTIES ARISINGOUT OF THIS SALE, INCLUDING BUT NOTLIMITED TO THEIMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS

FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATIONTO THE ABOVE ONE-YEAR PERIOD. TEXAS INSTRUMENTS

SHALL NOT BE LIABLE FOR LOSS OF USE OF THE PRODUCT

OR OTHERINCIDENTAL OR CONSEQUENTIAL COSTS,EXPENSES, OR DAMAGES INCURRED BYTHECONSUMERORANY OTHER USER.

Some states/provincesdo notallowthe exclusion or limitation ofimplied warrantiesor consequentialdamages, so the abovelimitations or exclusionsmaynotapplyto you.

LegalRemedies.Thiswarranty givesyouspecific legal rights, andyoumayalso have other rightsthat varyfromstate to state orprovince to province.

WarrantyPerformance.During the aboveone (1)yearwarrantyperiod,yourdefectiveproductwill be either repairedor replacedwitha reconditioned modelofan equivalentquality (at Tl's option)when the product is returned, postage prepaid, to TexasInstruments Service Facility. Thewarrantyof the repairedorreplacementunitwill continueforthe warrantyofthe original unitorsix(6)months,whicheveris longer.Otherthan the postagerequirement, no chargewill be madeforsuchrepairand/orreplacement. Tlstrongly recommendsthat youinsure the productforvaluepriorto mailing.

Software. Software is licensed, not sold. Tl and its licensors do notwarrantthat the softwarewill be freefromerrorsor meet yourspecificrequirements. Allsoftware is provided "AS IS."

Copyright.Thesoftware and anydocumentation supplied with thisproductare protectedby copyright.

All Customers Outside the U.S. and Canada

Forinformation about the lengthand termsof the warranty, refertoyourpackageand/orto thewarranty statementenclosed with thisproduct, orcontactyour local TexasInstruments retailer/distributor.

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