Casio FX 83 ES Calculator

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Basic Calculations (COMP) This section explains how to perform arithmetic, fraction, percent, and sexagesimal calculations. All calculations in this section are performed in the COMP Mode (N1). k Arithmetic Calculations Use the +, -, *, and / keys to perform arithmetic calculations. Example: 7 × 8 – 4 × 5 = 36 LINE 7*8-4*5= • The calculator automatically judges the calculation priority sequence. For more information, see “Calculation Priority Sequence”. Iwouldleavecalculatorshowingfractionsandusethebuttonwhenyouwantanswerindecimalform.Dorememberthatfractionsareusuallypreferredbyexaminers. Handling Precautions • Be sure to press the O key before using the calculator for the first time. • Even if the calculator is operating normally, replace the battery at least once every three years (LR44 (GPA76)), two years (R03 (UM-4)), or one year (LR03 (AM4)). A dead battery can leak, causing damage to and malfunction of the calculator. Never leave a dead battery in the calculator. • The battery that comes with this unit discharges slightly during shipment and storage.

Switching between Fraction and Decimal Format f • The format of the fraction depends on the currently selected fraction display format setting (improper fraction or mixed fraction). • You cannot switch from decimal format to mixed fraction format if the total number of digits used in the mixed fraction (including integer, numerator, denominator, and separator symbols) is greater than 10. • For details about the f key, see “Using S-D Transformation”. k Inputting with Math Format When inputting with Math format, you can input and display fractions and some functions using the same format as they appear in your textbook. Important! • Certain types of expressions can cause the height of a calculation formula to be greater than one display line. The maximum allowable height of a calculation formula is two display screens (31 dots × 2). Further input will become impossible if the height of the calculation you are inputting exceeds the allowable limit. The A-level models have additional functions such as solving quadratics and simultaneous equations which can be useful at GCSE too, as well as Statistics functions that you don’t need until A-level. So if there’s any chance of you continuing with Maths beyond GCSE then it’s a worthwhile investment. (You’ll probably need it if you do Core Maths too, though it does depend on which board and which modules you study. It – or an equivalent – is certainly required for the Statistical Techniques option on the AQA spec.) Calculation Examples Using Independent Memory • If the “M” indicator is on the display, perform the procedure under “Clearing Independent Memory” before performing this example. Example: 23 + 9 = 32 23+9m 53 – 6 = 47 53-6m –)45 × 2 = 90 45*21m(M–) 99 ÷ 3 = 33 99/3m (Total) 22 tm(M) Clearing Independent Memory Press01t(STO)m. This clears independent memory and causes the “M” indicator to disappear from the display.The Casio FX-83ES calculator is a versatile and reliable device that is commonly used for mathematical calculations in educational and professional settings. Designed with user-friendly features, it allows for easy navigation and efficient problem-solving.

Thisisreallyannoyingme,themanualisconfusingandeverythingpeopletellmetodoisn'tworking?Surelyyoudon'thavetoworkwithstupidlysmallnumbersinfractionsallthetime? The Casio fx-83ES is a scientific calculator with 10 digits precision and formula input logic. It has 249 functions, 50 keys, and an LCD (liquid crystal) display. The power source is AAA batteries. The calculator was manufactured in China. About this Manual • The MATH mark indicates an example that uses Math format, while the LINE mark indicates Linear format. For details about input/output formats, see “Specifying the Input/Output Format”. • Keycap markings indicate what a key inputs or what function it performs. Example: 1, 2, +, -, !, A, etc. • Pressing the 1 or S key followed by a second key performs the alternate function of the second key. The alternate function is indicated by the text printed above the key. If you have the older GT Plus then it will still do everything you need for GCSE, so don’t worry about that!haveyoutriedjustpressingshiftorctrlbeforeyoupresstheequalsbutton?ihaveati-nspirebutitworksforme,anditdidonmyoldcasioscientificcalculatoraswell It’s also worth considering an A-level model, especially if you’re doing the Higher Tier and there’s a possibility that you might continue to study Maths in some form beyond GCSE. Inputting Expressions and Values k Inputting a Calculation Expression Using Standard Format Your calculator lets you input calculation expressions just as they are written. Then simply press the = key to execute it. The calculator automatically judges the calculation priority sequence for addition, subtraction, multiplication, and division, functions, and parentheses.