Variables Content | Sharp EL-738 guide

The estimate of y for a given x (estimate y´) and the estimate of x for a given y (estimate x´) can also be found. When there are two x values, the COMP symbol will appear. Press @to switch between x values.

Exponential regression, logarithmic regression, pow- er regression, and inverse regression calculations

Section

and

results, except for coefﬁcients c.

The estimate of y for a given x (estimate y´) and the estimate of x for a given y (estimate x´) can also be found. Because the calculator converts each formula into a linear regression before actual calculation takes place, it obtains all statistics — except coefﬁcients a and b — from converted data rather than from entered data.

	Variables					Content

		n				Number of samples

						Mean of samples (x values)
			x			Mean of samples (x values)

①	sx					Sample standard deviation (x values)

			x			Population standard deviation (x values)
			x			Population standard deviation (x values)

			x			Sum of samples (x values)

			x2			Sum of squares of samples (x values)

						Mean of samples (y values)
		y				Mean of samples (y values)

	sy					Sample standard deviation (y values)

			y			Population standard deviation (y values)

			y			Sum of samples (y values)

②			y2			Sum of squares of samples (y values)

			xy			Sum of products of samples (x, y)
			xy			Sum of products of samples (x, y)

		a				Coefﬁcient of regression equation

		b				Coefﬁcient of regression equation

		c				Coefﬁcient of quadratic regression equation

		r				Correlation coefﬁcient

•Use ior fto perform a variable calculation in STAT mode.

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Sharp EL-738 operation manual Variables Content

Contents

EL-738 Page Contents Operational Notes Introduction Using the .and Key Notations in This ManualKeys Resetting the Calculator In Case of Difﬁculty Resetting the calculatorPreparing to Use the Calculator Calculator and Display Layout Calculator layoutKey operation keys 2ndF Display layout Selecting the display notation and number of decimal places SET UP Menu 0003 3333333000 Selecting the angular unit see Operations available in each mode Selecting a modeOperating Modes Selecting the date format see 343 140009000 Basic Calculations Delete key ⋅ ⋅ Memory clear key Editing and Correcting an EntryCursor keys Playback function Memory use in each mode for memory calculations Errors500 192 Independent memory M Temporary memories A-H, X-ZLast answer memory ANS TVM variables Statistical variables Memory calculationsExample Key operation Financial calculations General Information Variables shared among calculations Variables used in ﬁnancial calculations Basic variable operations TVM variables N, I/Y, PV, PMT, FVListed ﬁnancial variables Category Display symbols Descriptions ENT and Comp symbols Compound interest Cash ﬂow diagrams Variable Corresponding Description Default Variable key Setting the payment period payment dueTVM Time Value of Money Solver Variables used in the TVM solver Calculating basic loan interest Basic examples for the TVM solver 24000 12005600000 44000 8000 400125586 Calculating basic loan payments 20000 3600FV= Calculating future value 2000 1001000000 376889 Ordinary annuity END Specifying payments dueAnnuity due BGN Ordinary annuity 30000000 1800360 1624570 29950 240014500 299500 150000 3400627995 Calculating down payment and amount to borrow 90000 30000550 14655892 Variable Description Default value Amortization CalculationsVariables used in amortization 8895148 61656 203428 104852600 1700 4800 38445748275524 1724476 Entering cash ﬂow data Discounted Cash Flow AnalysisSingle cash ﬂows Repeated cash ﬂows 200 000*2300 Conﬁrming and editing data Editing data 2500000Deleting data Inserting data 600000 3000000Variables used in discounted cash ﬂow analysis NPV and IRR Play in Normal mode Procedure Key operation Display Bring up the initial disTo obtain NPV To obtain IRR Calculating the present value of variable cash ﬂows 2314 662752 Setting the day-count method Bond CalculationsVariables used in bond calculations To obtain yield to maturity Yield I/Y To obtain bond price Price PV 10000 65015-2023 720 9250 728Entering dates Depreciation Calculations Setting the depreciation methodVariables used in depreciation calculations Key operation DescriptionPage 3000 5000000Calculating straight-line depreciation Conversion between APR and EFF 1956To change APR to EFF To change EFF to APR Variables used in day and date calculations Day and Date Calculations 22800 10-2009Calculating number of days Answer 228 days Procedure Key operation Display Move to the last date Percent Change/Compound Interest Cal- culationsCalculate 11600000 75000005467 800000 113 980000Cost/Sell/Margin/Markup Calculations Variables used in cost/sell/margin/markup calcula- tions 9500 4556088842 Determining selling price Breakeven Calculations Variables used in breakeven calculationsCalculating the breakeven point 7580 150000012000 33937 Chain Calculations Constant Calculations 071 0875000 4500 Random numbers Random FunctionsRandom dice Random coin 532 Modify FunctionRandom integer For a single-variable data set Entering statistical dataFor a two-variable data set x value y value J Key operation Sub-mode Display Entering statistical data 1000 2000 Single-variable statistical calculations Statistical Calculations and VariablesLinear regression calculations Quadratic regression calculation Variables Content 53000 17857Single-variable statistical calculation Linear regression calculation Quadratic regression calculation TVM solver Financial Calculation FormulasAmortization calculations Discounted cash ﬂow analysis Bond calculations Depreciation calculations Conversion between APR and EFFDay and date calculations Statistical Calcula- tion Formulas Cost/Sell/Margin/Markup calculationsBreakeven calculations Error codes and error types Errors and Calculation RangesSyntax error Error Calculation error Error No solution Error Equation too long ErrorDisplay error Error Input value error Error Function Calculation range Calculation ranges of functions Integer When to replace the battery Battery Replacement Replacement procedure Automatic power-off functionPriority Levels in Calculations Speciﬁcations For more information about business/ ﬁnancial calculatorsKey operation and calculation priority Index Formulas, 72-75 FV, 18, 22, 72 GRAD, 8, 9, 61 Memo