Using Calculator Memory Memory Name Description Answer Memory Stores the last calculation result obtained. Independent Memory Calculation results can be added to or subtracted from independent memory. The “M” display indicator indicates data in independent memory. Variables Six variables named A, B, C, D, X, and Y can be used for storage of individual values. This section uses the COMP Mode (N1) to demonstrate how you can use memory.

Example 2: sin (60) = MATH ' 3 2 (Angle Unit: Deg) Math s60= Example 3: sin–1 (0.5) = MATH 1 π 6 (Angle Unit: Rad) Math 1s(sin–1)0.5= • The following are the calculations for which ' form (form that includes ' within irrational number display) results can be displayed. a. Arithmetic calculations of values with square root symbol ('), x2, x3, x–1 b. k Power Functions and Power Root Functions '( X2, X3, X–1, X Equipped with a wide range of mathematical functions, the FX-83ES is capable of performing various calculations, including basic arithmetic operations, percentage calculations, and trigonometric functions. It also offers statistical calculations, allowing users to generate data plots and perform regression analyses. Inputting Answer Memory Contents into an Expression Example: To perform the calculations shown below: 123 + 456 = 579 789 – 579 = 210 LINE 123+456= 789-G= k Independent Memory (M) You can add calculation results to or subtract results from independent memory. The “M” appears on the display when independent memory contains a value. Independent Memory Overview • The following is a summary of the different operations you can perform using independent memory.The cursor key is marked with four arrows, indicating direction, as shown in the illustration nearby. In this User’s Guide, cursor key operation is indicated as f, c, d, and e. REPLAY • The displays and illustrations (such as key markings) shown in this User’s Guide and the separate Appendix are for illustrative purposes only, and may differ somewhat from the actual items they represent. • The contents of this manual are subject to change without notice. • In no event shall CASIO Computer Co., Ltd. Math format causes fractions, irrational numbers, and other expressions to be displayed as they are written on paper. • Linear format causes fractions and other expressions to be displayed in a single line. k Converting an Input Value to the Calculator’s Default Angle Unit After inputting a value, press 1G(DRG') to display the angle unit specification menu shown below. Press the number key that corresponds to the angle unit of the input value. The calculator will automatically convert it to the calculator’s default angle unit. Example: To convert the following values to degrees: π radians = 90°, 50 grads = 45° 2 The following procedure assumes that the calculator’s default angle unit is degrees. Example: (2 + 3) × (4 – 1) = 15 LINE (2+3)* (4-1= k Fraction Calculations How you should input fractions depends on the input/output format that is currently selected. Improper Fraction Math Format Linear Format Mixed Fraction 7 3 2 1 3 ('7c3) (1'(()2e1c3) 7{3 2{1{3 Numerator Denominator Integer Part (7'3) Denominator Numerator (2'1'3) • Under initial default settings, fractions are displayed as improper fractions. • Fraction calculation results are always reduced before being displayed.

I'vetriedthewholeSHIFT-->MODE-->2:LineIOthingandallitgivesmeisthefractionagain,seperatedbyacomma(e.g39,12500). For GCSE Maths, you will need a scientific calculator, but just about any model will do; see AQA’s guidance below for a list of the functions you need. Specifying the Fraction Display Format To specify this fraction display format: Perform this key operation: Mixed 1Nc1(ab/c) Improper 1Nc2(d/c) Specifying the Statistical Display Format Use the following procedure to turn display of the frequency (FREQ) column of the STAT Mode STAT editor screen on or off.Ihavethatcalculator.Youdoknowthatwhenitgivesyouafractionasananswertheisabuttonyoucanpresstoconvertthefractionalanswerintoanumericalvalue?? Ishouldalsoaddthathavingitgiveananswerinfractionformbydefaultcanbeuseful(eginmaths/Physetcyoumaybeaskedtospecifyananswer'exactly'ieasurdorfractionratherthanroundeddecimalvalue),ivastlypreferitnowthatimusedtoit. If you have a Casio fx-83ES that is no longer working, you can first try replacing the AAA battery. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. Example: 2' 3 × 4 = 8' 3 ' form 35' 2 × 3 = 148.492424 (= 105' 2) decimal form 150' 2 = 8.485281374 25 2 × (3 – 2' 5 ) = 6 – 4' 5 ' form 23 × (5 – 2' 3 ) = 35.32566285 (= 115 – 46' 3) decimal form 10' 2 + 15 × 3' 3 = 45' 3 + 10' 2 ' form 15 × (10' 2 + 3' 3 ) = 290.0743207 (= 45' 3 + 150' 2) decimal form ' 2+' 3+' 8=' 3 + 3' 2 ' 2+' 3+' 6 = 5.595754113 ' form decimal form The underlined areas in the above examples indicate what caused decimal form to be used. With its compact and lightweight design, the FX-83ES is highly portable, making it ideal for students and professionals on the go. It comes with a protective hard case, ensuring that it remains safe and secure during transportation.