CONTENTS HOW TO USE THE SLIDE COVER ............. P.3 DISPLAY (2-LINE DISPLAY) ..............P.4 TO GET START Power ON, OFF ................P.4 MODE Selection ................P.5 Display Formats Setting ..............P.6 Before Using the Calculator ............P.6 INPUTTING EXPRESSIONS AND VALUES Input Capacity ................
LCM, GCD, Quotient and Remainder Calculations, and many more. We recommend you to read this user manual and all the important notices before start using F-715SG. And please keep this user manual with you for future use. HOW TO USE THE SLIDE COVER...
MODE Selection MODE Selection Press to start the calculation mode selection with the following display: COMP SD When pressing , you can access the next (or previous) mode selection page. The following table shows the mode selection menu: Operation Mode Indicator s i t c i t...
Display Formats Setting F-715SG can display a result up to 10 digits. Results exceed the digit limit will be automatically displayed by exponential notation format. You can enter a value in floating-decimal, fixed-decimal, or scientific notation format and display format setting only affects the calculation results.
INPUTTING EXPRESSIONS AND VALUES Input Capacity F-715SG allows you to input a single calculation up to 79 steps. Starting from the 73rd step, the cursor changes from [ _ ] to [ ■ that notifying the memory is running low. In case you need to input a single calculation with more than 79 steps, you should separate your calculation into two or more segments.
After deleted an input by or cleared the input by icon will be shown on the display. Press to resume up to 79 deleted input or to undo the cleared segment and back to the previous display. If pressed to delete character(s) then clear the display, the calculator will prioritize the undo from resuming the latest cleared characters, and followed with the deleted...
INPUT RANGE AND ERROR MESSAGE Calculation Accuracy, Input Ranges Internal digits: Up to 16 Accuracy*: 1 at the 10 digit for a single calculation. 1 at the last significant digit for exponential display. Output ranges: 1 x 10 9.999999999 x 10 Function Input Range sin x...
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Function Input Range Pol(x,y) | x |, | y | 9.999999999x10 9.999999999x10 Rec(r, ) 9.999999999x10 : Same as sinx < | a |, b, c 1x10 b, c < < | x | 1x10 , Decimal Sexagesimal Conversions | x | 999999 >...
Order of Operations The calculator will automatically determine the operation priority that algebraic expressions can be entered just as they are written: 1) Coordinate transformation : Pol(x, y), Rec(r, ) s i t c i t Logarithm with a, b variables : log b(a, b) Random Integer Number Generation : i~Rand(A, B)
Calculation Stacks This calculator uses memory areas, called "stacks", to temporarily store numeric value (numbers) and commands (+ x ...) according to their precedence during calculations. The numeric stack has 10 levels and the command stack has 24 levels. A stack error [Stack ERROR] occurs whenever you try to perform a calculation that exceeds the capacity of stacks.
Error Message Cause Action Syntax ERROR An attempt to perform an Press to display the illegal mathematical calculation with the cursor operation. located at the location of the error and make required corrections. BASIC CALCULATIONS Press to enter COMP mode as you want to perform basic calculations.
Memory Calculations Memory Variables There are 17 memory variables (0 through 9, A through D, M, X, and Y) which store data, results, or dedicated values. To store values into memory by pressing + Memory variable. To recall memory values, press + Memory variable.
Display (Lower) Operation Display (Upper) You can recall and use the latest stored Answer Memory by pressing Operation Display (Upper) Display (Lower) ! Answer Memory is not updated as an error operation had been performed. Fraction Operations The Calculator support Fraction Calculation and the conversions between Fraction, Decimal point, Mixed fraction and Improper fraction.
Decimal Mixed fraction Improper fraction conversion Operation Examples Display (Lower) (Decimal Mixed Fraction) (Mixed Fraction Improper Fraction) Fraction conversion may take as long as two seconds. ! You can specify the fraction calculation result (when the result greater than one) display format by either mixed fraction or improper fraction.
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Mark up : "A" value mark up by "B%" Discount : "A" value have "B%" discount Examples Operation Display (Upper) 820 mark up 25% 820 have 25% discount Percentage Increase : If "A" is added to "B", the percentage increase from "B"...
Percentage Proportion : the ratio/ percentage of each individual portion in a calculation expression. If A + B + C = D "A" is a% of "D" where a = x 100% Examples: To calculate the ratio of each portion as 25+85+90=200 (100%), the ratio of 25 is 12.5%, 85 is 42.5%, 90 is 45% Operation Display (Upper)
Fix, Sci, Norm, ROUND You can change the number of decimal point, the number of significant digits, or the exponential notation criteria by pressing to the following selection screen: Norm Press 1 (Fixed Decimal Setting) : [ Fix 0 ~ 9? ] appears, specify the number of decimal places by pressing Press 2 (Scientific Notation)
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Example : 57 ÷ 7 x 20 = ?? Operation Display (Lower) At default setting. 162.8571429 162.8571 (Internal calculation continues 8.1429 16 digits) 162.8571 Perform internal rounding 8.1429 162.8580 under the special decimal setting. notiation. 1.62858× Notation format by pressing 162.858 to clear the FIX and Sci...
FUNCTIONAL SCIENTIFIC CALCULATIONS Press to enter COMP mode for performing functional scientific calculations. During the busy calculation, the calculator will display the message [PROCESSING]. = 3.14159265359 e = 2.71828182846 Square, Root, Cube, Cube Root, Power, Power Root, Reciprocal and Pi Example: ( = 0.621755977 Display (Upper)
Angle Unit Conversion The calculator default angle unit setting is "Degree". If you need to change into "Radian" or "Grade", you can press a number of times until you reach the setup screen: Then press the corresponding number key , or for the angle unit you need.
Permutation, Combination, Factorials and Random Number Generation Permutation : nPr = (n-r) Combination : nCr = r!(n-r) Factorial : x! = x(x-1)(x-2)..(2)(1) Examples Operation Display (Lower) Random Number Generation : To generate a random number between 0.000 and 0.999 : To generate a random number between two specified positive integers.
Least Common Multiple and Greatest Common Divisor LCM: Calculate the least common multiple among (maximum) three positive integers. GCD: Calculate the greatest common divisor among (maximum) three positive integers. Operation Display (Lower) Examples LCM(15, 27, 39) = 1755 1,755. GCD(12, 24, 60) = 12 ! Inputting a zero [ 0 ] value in a LCM/ GCD calculation, the calculator will skip the [0] value and continue the calculation with the non-zero integrs.
Coordinate Conversion With polar coordinates, you can calculate and display within -180 < range. (Same as Radian and Gradient) After conversion, results will automatically assigned to memory variables X and Y. : To convert rectangular coordinates (x, y) to polar coordinates ( r , );...
STATISTICAL CALCULATIONS [SD] [REG] To enter the standard deviation mode by pressing [SD] indicator lights up. If press , you can enter the regression mode selection menu. [REG] indicator will be turned on. Before starting, be sure to clear the statistic memory by pressing Perform the data input .
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To edit the stored data, input the new value during the display of that data value (x) after pressing key, and then press to confirm the edit. But, if you press instead of , a new data value will be stored. Press can delete the data during the display of that data value (x) after...
Standard Deviation Press to ender SD mode. Before starting, be sure to clear the statistical memory by pressing You can recall the following statistical value after input all data. Value (Symbol) Summation of x ( x ) Mean of x ( x ) Sum of Square ( x Maximum value of x ( maxX ) Number of data sample ( n )
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If follow with another regression options will be displayed as follow: Quad You can press for [Pwr] = Power regression, [Inv] = Inverse regression, [Quad] = Quadratic regression. Before starting, be sure to clear the statistical memory by pressing Input data in the form of x-data y-data .
For non-quadratic regression Correlation coefficient r Regression estimated value x Regression estimated value y For Quadratic regression only Summation of all x values Summation of all x y pairs Summation of all x values Regression coefficient C Regression estimated value x Regression estimated value x Regression estimated value y Linear regression...
BATTERY REPLACEMENT When the display characters are dim even a darker LCD contrast had been adjusted OR the following Low battery message appears on the display, replace the battery immediately. L O W B A T T E R Y Please replace the lithium battery by the following procedures: 1.