Efx-82AU PLUSUser’s GuideCASIO Worldwide Education Website http://edu.casio.comCASIO EDUCATIONAL FORUM http://edu.casio.com/forum/

E-9Overwrite Input Mode (Linear Display only)You can select either insert or overwrite as the input mode, but only while Linear Display is selected. I

E-10 1 = 12 24 − 3  4 () 3 C 1 A 2  12 1 4  3  1  2  1Y2Note: • Mixing fractions and decimal values in a calculation while Linea

E-11 3 + 3 : 3 s 3 3  3 (:) 3  3  6  9Using Engineering NotationA simple key operation transforms a displayed value to engineeri

E-12 To divide the result of 3 s 4 by 30 1 3  4  (Continuing)  30  123 + 456 = 579  123  456  789 – 579 = 210 (Continuin

E-13Function CalculationsFor actual operations using each function, see the “Examples” section following the list below. : P is displayed as 3.14159

E-14Rnd : The argument of this function is made a decimal value and then rounded in accordance with the current number of display digits setting (Norm

E-15 To convert rectangular coordinates ('2, '2) to polar coordinates B  (Pol) 2 C(,) 2 C r=2,θ=45 1 (Pol) 2

E-16Paired-variable (X, Y), quadratic regression ( y = A + Bx + Cx2)( _+CX2)Paired-variable (X, Y), logarithmic regression ( y = A + Blnx)(ln X)Pair

E-17To delete a line: In the Stat Editor, move the cursor to the line that you want to delete and then press &. To insert a line: In the Stat Edit

E-18 To calculate the linear regression and logarithmic regression correlation coefficients for the following paired-variable data and

ContentsImportant Information ... 2Sample Operations ...

E-19Number of Digits for Internal Calculation15 digitsPrecisionIn general, p1 at the 10th digit for a single calculation. Precision for exponential di

E-20Rec(r, θ)0  r 9.999999999 s1099θ: Same as sinx°’ ”\a\, b, c  1 s101000  b, cThe display seconds value is subject to an error of 21 at the s

E-21 C (or B) B 1  Clearing the Error MessageWhile an error message is displayed, press  to return to the calculation screen. Note that this al

For details about initialized settings, see “Configuring the Calculator Setup”.4. Initialize all modes and settings by performing the following oper

Independent Memory: Use this memory to totalize the results of multiple calculations. Variables: This memory is helpful when you need to uses the sa

E-2Important Information• The displays and illustrations (such as key markings) shown in this User’s Guide are for illustrative purposes only, and may

E-3• Never try to take the calculator apart. • Use a soft, dry cloth to clean the exterior of the calculator. • Whenever discarding the calculator or

E-4Reading the DisplayThe display of the calculator shows expressions you input, calculation results, and various indicators.Input expression Indicat

E-5Important: For some type of calculation that takes a long time to execute, the display may show only the above indicators (without any value) while

E-6Fix Sci Norm Specifies the number of digits for display of a calculation result.Fix: The value you specify (from 0 to 9) controls the numb

E-7*1 Input of the closing parenthesis is required for sin, sinh, and other functions that include parentheses. *2 These multiplication symbols (s)

E-89thMultiplication, division (s, ÷)10th Addition, subtraction (+, –)Inputting with Natural DisplaySelecting Natural Display makes it possible to inp