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HP 300s+ Scientific manual Two unknowns Three unknowns, Simultaneous Linear Equations

Models: 300s+ Scientific

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	Two unknowns	Three unknowns
KEY IN	DISPLAY	DISPLAY
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Simultaneous Linear Equations

1.Simultaneous Linear Equations with Two Unknowns: a1x + b1y = c1

a2x + b2y = c2

2.Simultaneous Linear Equations with Three Unknowns: a1x + b1y + c1z = d1

a2x + b2y + c2z = d2 a3x + b3y + c3z = d3

•Use the coefficient editor screen to input the coefficients of an equation. The coefficient editor screen shows input cells for each of the coefficients required by the currently selected equation type.

•When simultaneous linear equations with three unknowns are selected as the equation type, the d column will not be visible on the display when the coefficient editor screen is first displayed. The d column will become visible when you move the cursor to it, which causes the screen to shift.

Example: To solve the following equations x + 2y = 5 and 3x - 2y = 3 (x = 2, y = 1.5)

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HP 300s+ Scientific manual Two unknowns Three unknowns, Simultaneous Linear Equations

Contents

HP 300s+ Scientific Calculator User Guide First Edition September Part number Table of contents Using Calculator Memory Transforming Displayed Values Reference About this Manual Example , , , , , etcIf key marking text is It means this This color Safety Precautions BatteryInitializing the Calculator Other Precautions Before Using the CalculatorUsing the Protective Hard Case Disposing of the CalculatorTurning Power On and Off Adjusting Display ContrastDisplay Indicators About the DisplayMath Calculation Modes and Calculator Setup Specifying the Calculation ModeConfiguring the Calculator Setup Calculation ModesSpecifying the Default Angle Unit Specifying the Number of Display DigitsCalculation Result Display Examples Fix - Initializing the Calculation Mode and Other Settings Specifying the Fraction FormatSpecifying the Statistical Display Format Specifying the Decimal Point Display FormatInputting a Calculation Expression Using Standard Format Inputting Expressions and ValuesInputting a General Function    Omitting the Multiplication Sign Final Closed ParenthesesDisplaying a Long Expression Number of Input Characters BytesCorrecting an Expression About Insert and Overwrite Input ModesChanging the Character or Function You Just Input Deleting a Character or Function Correcting a Calculation            Displaying the Location of an Error Overwrite Mode    Inserting Input into a Calculation Functions and Symbols Supported for Math Format Input Inputting with Math FormatMath Format Input Examples Incorporating a Value into a Function         Page   sin-1Example 1 2 + 8 = 3 Example 2 sin60 =Grads  Form Calculation RangeBasic Calculations Comp Arithmetic CalculationsNumber of Decimal Places and Number of Significant Digits Omitting a Final Closed ParenthesesFraction Calculations             Switching Between Fraction and Decimal Format Percent Calculations%    %   %  %  %Degree, Minute, Second Sexagesimal Calculations Inputting Sexagesimal ValuesSexagesimal Calculations Converting Values Between Sexagesimal and DecimalUsing Multi-statements in Calculations Using Calculation History Memory and Replay CompRecalling Calculation History Memory Contents Replay Function     Using Calculator Memory Answer Memory Ans  Inputting Answer Memory Contents into an Expression Independent Memory M  Independent Memory OverviewVariables A, B, C, D, E, F, X, Y   MClearing the Contents of All Memories Function CalculationsPi π and Natural Logarithm Base Trigonometric and Inverse Trigonometric Functions Hyperbolic and Inverse Hyperbolic Functions   sin-1 Exponential Functions and Logarithmic Functions  π  π   cos-1  cos-1       e Power Functions and Power Root Functions Rectangular-Polar Coordinate Conversion Converting to Polar Coordinates PolConverting to Rectangular Coordinates Rec Greatest Common Divisor and Least Common Multiple  Pol   ,   Pol   ,  Rec    Integer Function and the Greatest Integer Function Division with Quotient and RemainderFraction Simplification Function     Using Calc Metric Conversion     A  RanInt Other Functions ,  Factorial Absolute Value Calculation AbsRandom Number Ran# Permutation nPr and Combination nCr Rounding Function Rnd nPr   nCr  Using Engineering Notation Transforming Displayed ValuesUsing S-D Transformation Formats Supported for S-D TransformationExamples of S-D Transformation  ←Statistical Calculation Stat Selecting a Statistical Calculation TypeStatistical Calculation Types π Inputting Sample Data Displaying the Stat Editor Screen Stat Editor ScreenFreq Frequency Column Rules for Inputting Sample Data on the Stat Editor ScreenStat Editor Screen Input Precautions Precautions Concerning Sample Data StorageEditing Sample Data Deleting All Stat Editor Contents Using the Stat MenuDeleting a Line Inserting LineSingle-variable 1-VAR Statistical Calculation Commands Common Items Select this When you want to do this Menu itemSelect this menu item When you want to obtain this Stat Menu ItemsVar Sub-menu   Stat  Var MinMax Sub-menu STAT MinMaxSingle-variable Statistical Calculation         Commands When Linear Regression Calculation A+Bx Is Selected Sum Sub-menu  STAT  Sum Var Sub-menu   Stat  VarMinMax Sub-menu   Stat MinMax Reg Sub-menu   Stat  Reg        Linear Regression Calculation           ∑x⎞ Reg Sub-menu STAT Reg  yQuadratic Regression Calculation Page Comments for Other Typed of Regression Logarithm RegressionExponential Regression e X y = AeBx Ab Exponential Regression A⋅BX∑x1 ∑ x Comparison Regression Curves         Other types of Regression Calculation                            Command Usage Tips Calculations of Equations EQN           Two unknowns Three unknowns Simultaneous Linear Equations       Inputting and editing coefficientsSolution Display Special Solution Display   Generating a Number Table from a Function Table  Supported Function Types Table Mode Precautions Using the Verify Command Start, End, and Step Value RulesNumber Table Screen KeyInputting and Editing Key Display    Proportion Calculations Prop Inputting and Editing Coefficients= x/d Key in Display      Prop Solution Display           Technical Information Order of OperationsStack Limitations ÷, ÷RCalculation Ranges, Number of Digits, and Precision Calculation Range and PrecisionFunction Calculation Input Ranges and Precision Functions Input RangeDEG RAD GCD Error Messages When an Error Message AppearsMath Error CauseStack Error Syntax ErrorInsufficient MEM Error Before assuming malfunction of the calculatorPower Requirements and Battery Replacement Replacing the BatteryReference Auto Power Off SpecificationsPower Requirements Operating Temperature 0C to 40C Bundled Items Hard CaseRegulatory Notices European Union Regulatory NoticeJapanese Notice Korean Notice Class B Perchlorate Material special handling may apply

Two unknowns

Three unknowns

KEY IN

DISPLAY

Simultaneous Linear Equations