Un-zoom, Now un-zoom | HP 39gs Graphing instruction

Option	Meaning (Continued)

Un-zoom	Returns the display to the previous
	zoom, or if there has been only one
	zoom, un-zoom displays the graph
	with the original plot settings.

ZOOM examples The following screens show the effects of zooming options on a plot of 3 sin x .

Plot of 3 sin x

Zoom In:

In

Un-zoom:

Un-zoom

Note: Press to move to the bottom of the Zoom list.

Zoom Out:

Out

Now un-zoom.

X-Zoom In:

X-Zoom In

Now un-zoom.

X-Zoom Out:

X-Zoom Out

Now un-zoom.

Aplets and their views

2-11

Image 51

HP 39gs Graphing manual Un-zoom, Now un-zoom

Contents

Edition3 Part Number F2223AA-90001 Users guide Printing History USAEdition December June Contents Using variables in equations 10-110-6 11-9 11-111-4 11-8 14-4 13-24Program constants 13-24 Physical constants 13-25 Introduction 14-1 Storing and recalling variables 14-2 19-1 18-718-9 18-30 Service Regulatory information Function, Polar, Parametric PrefaceManual conventions Hewlett Packard’s Calculators web site can be found atPage On/off, cancel operations Getting startedHome Contrast To adjustDisplay Parts of the display Keyboard Menu keysInfrared or cable Aplet views on Aplet control keysAplet library on Displays the Views menu. See Button performs Entry/Edit keys Shifted keystrokes Math keys Helpwith Inactive keys CommandsMenus Program Input forms Reset input form values You use the Modes input form to set the modes for Home Mode settings Setting a mode Press to return to Home Aplets E-lessons Another sequence, such as Un 1 Example x = cost and y = sintPolar Sequence Sequence functions U in terms of n, or Quad Explorer aplet Transformations reflected in the equation Aplet views Symbolic view Plot viewPress to display the aplet’s Symbolic view Aplet library Select Plot-Table Select Plot-DetailSelect Overlay Plot Aplet view configuration Plot Setup Numeric Setup Symbolic SetupSketch view Entering expressions Where to startTo save aplet configuration Mathematical calculations 23 3 EEX Long results Negative numbers Scientific notation powersUsing Explicit and implicit multiplication Entering Calculates Sin 45 + π Parentheses Input Output Last input Edit line Last output Getting started Storing a value in a variable Using fractions Accessing the display history Clearing the display historySetting Fraction mode Setting fraction precision Fraction calculations SelectFraction Converting decimals to fractions Enter the calculation Evaluate the calculationFraction as This example, the fraction precision is set to Complex numbers Catalogs and editors Aplet views About the Symbolic viewDefining an expression Symbolic view Aplets and their views Independent variable in the expressions is T Evaluating expressions ApletsSelect Function Home About the Plot view Setting up the plot Plot view setup Plot view settings ΘRNGΘSTEP Exploring the graph Reset plot settings To move between relations Trace a graph Zoom within a graph To jump directly to a value To turn trace on/offZoom options Auto Scale SquareSet Factors Now un-zoom Un-zoom To box zoom Views menu options Other views for scaling and splitting the graph Pixel=π/24 radian, 7.58, or Unit. Resets default values forSplit the screen Making each pixel=1 unit. Not Trigonometric Overlay plotsDecimal scaling Integer scaling About the numeric view Setting up the table Numeric view setup Numeric view settings Exploring the table of numbersNUM view menu keys Zoom within a table Integer Numstart and Numstep Numtype Build Your Own Building your own table of numbersBuild a table Clear data Example plotting a circle Build Your Own menu keys Display the functions in numeric form Reset the graph setup to the default settingsFunction aplet, specify the functions FunctionPage Open the Function aplet Function apletAbout the Function aplet Getting started with the Function aplet Plot the functions Define the expressions Set up the plotPlot the functions Specify a grid for the graph Times Change the scale Trace a graphSelect Auto Scale Select Root Analyse graph with FCN functions Select Signed area Select Slope Select Extremum To find the extremum of the quadratic Display the numeric view Explore the tableDisplay the table of values To display Symbolic definition A columnDisplay the symbolic definition for the F1 column Symbolic definition F1 is displayed at Bottom of the screen Function aplet interactive analysis Select Plot FCNOr to choose a variable Slope FCN functionsRoot Extremum Cursor. You need to have at Symbolic view. DisplaysShading area Intersection Plotting a piecewise-defined function Define the expressions Parametric apletAbout the Parametric aplet Getting started with the Parametric aplet Select Degrees Set up the plot Plot the expressionSet angle measure Set the angle measure to degrees Overlay plot Display the numbers Plot a triangle graph over the existing circle graph120 Page Select Polar Polar apletGetting started with the Polar aplet Open the Polar aplet Display the Plot view menu key labels Explore the graph Display the numbers Sequence aplet About the Sequence apletGetting started with the Sequence aplet Menu keys to assist in the entry of equations Define the expression Specify plot settingsOpen the Sequence aplet Sequence Display the . Display the table of values for this example Plot Setup, set the Seqplot option to CobwebPlot the sequence Select CobwebPage About the Solve aplet Solve aplet Select Solve Getting started with the Solve apletOpen the Solve aplet Define the equation Enter known variables Modes is set to Comma, use instead Solve the unknown variable Plot the equation Displays other pages of variables, if Plot the equation for variable aSolve aplet’s NUM view keys are Copies the highlighted value to Use an initial guess Interpreting results Consider the equation of motion for an accelerating body Plotting to find guesses Plot the graph To highlight T Press until the cursor is at the intersection Using variables in equations Solver Linear Solver apletOpen the Linear Sequence aplet Select Linear Hence we need the three-equation input form Solver was able to find solutions for x, y, and z as Linear Solver aplet Page About the Triangle Solver aplet Triangle Solve aplet Triangle Solver Open the Triangle Solver aplet Errors Addition, you cannot specify only angles and no lengths Not enough data Statistics aplet About the Statistics apletGetting started with the Statistics aplet To move to the next column Enter dataSelect Statistics Enter the data into the columns Select a fit in the Symbolic setup view Choose fit and data columns Explore statisticsValue is Slope m is 425.875. The y-intercept b is Setup plot Plot the graph Draw the regression curveDisplay the equation for best linear fit To move to the FIT1 field Predict values To highlightStat-Two Statistics aplet’s Numeric view keys are Entering and editing statistical data Statistics Expression Expression in standard Mathematical form. Press When DoneCopies the column variable or Variable expression to the edit line Clear is used Data sets will need to be selectedAgain before re-use Plot a histogram of the data Save data Edit a data set Sort data values Delete data Insert data Fit models Angle SettingDefining a regression model To choose the fit To define your own fit 7,8,15,16,17 Computed statistics Plotting Two-variableColumns for a linear fit only Plot types Histogram Box and Whisker PlotTo plot statistical data Fitting a curve to 2VAR data Scatter PlotCorrelation coefficient Setting up the plot Plot setup view Relative ErrorPlotting mark 2VAR Connected points 2VAR Trouble-shooting a plot Statistics aplet’s Plot view keysErases the plot Model Calculating predicted valuesFind predicted values According to the current regression Statistics aplet 10-21 Page Open the Inference aplet Inference apletAbout the Inference aplet Getting started with the Inference aplet Inference aplet’s Symb view keys Table below summarizes the options available Symbolic view Test 1 μ Setup-NUMSelect the inferential method Enter data Select Hypoth Test Importing sample statistics from the Statistics aplet Are explained in the feature of this aplet Produced by the calculator 529 295 952 259 925 592 If the Decimal Mark setting in the Modes input formStatistics aplet opens in the Numeric view C1 column, enter the random numbers Select Conf Interval Set up the interval calculationOpen Inference aplet Inference Display Numeric view Display Plot view Specify a 90% Confidence interval in the C fieldTo move to the C field Inputs Hypothesis testsOne-Sample Z-Test Menu name Results Two-Sample Z-Test Measures the strength of the evidence for a selected One-Proportion Z-TestPopulation 2 standard Test 1π Two-Proportion Z-Test One-Sample T-Test With the α level that you Sample standard deviation Pooled? Two-Sample T-Test One-Sample Z-Interval Confidence intervals Two-Sample Z-Interval Two-Proportion Z-Interval One-Proportion Z-Interval One-Sample T-Interval Pooled Two-Sample T-Interval Critical T Critical value for T Background Using the Finance Solver 3 4 Compounding period -- which is PMT Performing TVM calculations Example 1 Loan calculations Example 2 Mortgage with balloon payment To continue amortizing the loan Calculating AmortizationsTo calculate amortizations Example 3 Amortization for home mortgage Example 4 Amortization for home mortgage Name. Note You do not need to press first Using mathematical functionsMath functions Math menu Functions common to keyboard and menus Math functions by categoryFunction categories Syntax E5 returns Keyboard functionsValue1+ value2 , etc Evalue LOG100 returns Returns ABS1,2 returns S1,2*X+3,X Calculus functionsNthroot 8 returns ∂ s1s1 2+3*s1 returns 2*s1+3 Conj Complex number functionsTaylor ARG Minreal ConstantsConversions Maxreal Hyperbolic trigonometry Loop functions List functions Polyeval Matrix functionsPolynomial functions Polycoef Perm Probability functionsPolyroot Comb Real-number functions Frac DEG→RADFloor Fnroot MIN INTMant MAX Sign TotalRAD→DEG Round Isolate Symbolic functionsTwo-variable statistics Xpon QUADX-12-7,X returns Test functionsQuad Quote XOR Trigonometry functionsIfte Not Symbolic calculations To find derivatives in Home Finding derivatives To find derivatives in the Function aplet’s Symbolic view Evaluate the function Show the resultSelect F2X and evaluate it To find the indefinite integral using formal variables You could also just defineFor example, to find the indefinite integral Program constants Program constants and physical constants Physical constants 13-26 Introduction Variables and memory management Storing and recalling variables To use variables CalculationsTo clear a variable Vars menu Open the Vars menuPress Result in another list variable Add the contents of two list variables, and to storeNames or values of variables into programs Example 14-6 That you can configure using To store into a graphics variable on17-5 for more information on Aplet variables on page R-7 To access an apletX0, Y0 to X9, Y9 Symbolic view. See Variable To delete variables in a category Memory ManagerLine, press and press Details of variables within the categoryPage Matrix Variables MatricesVectors Matrices Creating and storing matrices Matrix Catalog keysPOLYROOT1,0,-1,0 M1 To create a matrix in the Matrix Catalog To transmit a matrix Working with matrices Moves to the first row, last row, first Deletes the highlighted cells, rowOr column you are prompted to Make a choice Matrix arithmetic To store one elementCreate the second matrix Matrices 15-7 Open the Matrix catalog and create a vector Solving systems of linear equations Select Real matrix About functions Matrix functions and commandsAbout commands Argument conventions DOT CondCross DET Rref MakematRank Rownorm Examples Transposing a Matrix Reduced-Row Echelon Form Matrices 15-15 Page You can create, edit, delete, send, and receive named Lists List catalog keys List edit keys Create a list Element Displaying and editing listsTo display a list To display one 148 L12 A listTo insert an element 1. Open the List catalog Press , and press To delete a list List functionsDeleting lists Transmitting lists ΔLISTlist1 2,3 returns 5,10,15CONCATlist1,list2 CONCAT1,2,3,4 returns 1,2,3,4 23 27 Calculates the product of all elements in list ΠLISTlistΠLIST2,3,4 returns Finding statistical values for list elements 16-10 Or to exit the Notes view Aplet note viewTo write a note in Note view Your work is automatically saved. Press any view key Alpha-lock for letter entry Contents of variablesCommands Space key for text entry Aplet sketch view Sketch keysTo draw a line Draw keys To draw a box Press to continue drawing, or press Mynote Another HP 39gs or PC Opens the selected note forBegins a new note, and asks For a name Press instead Programming Contents of a Program Structured Programming Programs that perform smaller tasks Program catalogOpen Program Catalog Be simple-or it can be divided further into other Program catalog keys Creating and editing programs Create a new programPress Progrm to open the Program catalog On the left, use or to highlight a command Press to paste the command into the program editorEdit a program 1. Press Progrm to Editing keys Run a program Debug a program Stop a program Using programs Transmit a program Customizing an aplet Example Aplet naming convention Save the aplet Configuring the Setviews menu option programs ’’ ’’’’EXP.SV’’0 Setviews ’’’’ ’’’’18’’My Entry1’’’’EXP.ME1’’1 ’’My Entry2’’’’EXP.ME2’’3 Programming commands ’’’’’’EXP.ANG’’0’’Start’’’’EXP.S’’7 Setviews Aplet commandsCheck Select Auto-run programs Associating programs with your aplet ProgramName ViewNumberIncluding standard menu options Uncheck n Branch commandsUncheck IF...THEN...END If A==1 IF... THEN... ElseEND CASE...END Iferr Then ELSE… END Drawing commands RUNStop Line BOXErase Freeze Graphic commands →PLOT GrobxorMakegrob PLOT→ Loop commands Matrix commands Scaleadd RandmatRedim Scale Prompt commands Print commands Disp 3A is 2+2 ClrvarDisp Dispxy Disptime 51.52HELLOEditmat matrixname Getkey InputMsgbox Stat-One and Stat-Two commands Stat-One commandsStat-Two commands Storing and retrieving variables in programs Plot-view variables InvCross GridHmin/Hmax Indep Root IsectLabels Recenter Slope S1mark-S5markSeqPlot Simult Tracing Umin/UmaxUstep Tmin / Tmax Ytick TstepXcross Ycross Yzoom Ymin / Ymax Symbolic-view variables Cubic S2fit S1fit...S5fit Format Numeric-view variablesC1...C9, C0 Digits NumRow NumColNumFont NumIndep StatMode NumStepNumType NumZoom Graphicname Sketch variablesPageNum Following aplet variable is available in Note view Creating new aplets based on existing aplets Extending aplets Open the Solve aplet and save it under the new name SolveDegrees Resetting an aplet Using a customized apletChoose the sine formula in E1 Downloading e-lessons from the web Sending and receiving apletsHewlett-Packard’s Calculators web site can be found at To transmit an aplet To sort the aplet list To delete an aplet Sorting items in the aplet library menu list Cross matrix1,matrix2 Reference informationGlossary Expression line# Set to Comma and enclosed Editor and catalog Matrix Two-dimensional array of valuesRecord using the Program editor Vector One-dimensional array of values Resetting the HP 39gs To erase all memory and reset defaultsTo reset using the keyboard Operating details If the calculator does not turn onBatteries To install the main batteries To install the backup battery Home variables Variables Function aplet variables Area Root Extremum Slope IsectAngle Parametric aplet variables are Category Available name Plot Parametric aplet variables Polar aplet variables are Category Available names Plot Polar aplet variables Sequence aplet variables are Category Available name Plot Sequence aplet variables Solve aplet variables Solve aplet variables are Category Available name PlotDigits NumCol Format NumRow Statistics aplet variables Hyperb Math menu categoriesMath functions Math functions are Category Available name Calculus Polynom Category Available name Matrix Stat1Var Stat2Var Degrees Grads RadiansStandard Sci Fixed Eng Fraction Cobweb Stairstep Wavelength, λc Compt w... Compton Print Program commandsProgram commands are Category Command Aplet Branch Status messages Category Command Stat-Two Function value, root, extremum Also be correct. Look upFunction name in the index to Find its proper syntaxPage HP 39gs Graphing Calculator Warranty period 12 months Limited WarrantyPage Service Rotc = Rest of the country Canada 905 206-4663 or Regulatory information This marking is valid for EU XxxxPage Page Branch structures 18-17 build your own table Index Contrast Freeze 18-20 Line 18-20 Pixoff 18-20 Pixon 18-20 Tline Acosh Alog Asinh Atanh Cosh EXP GroborPage Page Angle measure 1-10 decimal mark 1-11 number format Trigonometric scaling 2-14 two-variablestatistics Sending and receiving 18-8 structured Menu lists 1-8 speed searches Navigate around 3-8 numeric values 3-7 numeric view setup Page