Casio fx-7400G PLUS Basic Operation Manuel d'utilisateur

Basic CalculationsIn the RUN Mode you can perform arithmetic calculations (addi-tion, subtraction, multiplication, division) as well as calculations i

22Chapter 2 Basic CalculationsuuuuuTo assign the same value to more than one variableOperation<value or expression>aa<start variable name>

23Basic Calculations Chapter 28. Fraction Calculations(1) Fraction Display and Input Example 1 Display of Example 2 Display of 3Mixed fractions (such

24Chapter 2 Basic Calculations Example To convert the result of the previous example to a decimal andthen back to a fractionMMuuuuuTo convert between

25Basic Calculations Chapter 2(3) Changing the Fraction Simplification ModeThe initial default of the calculator is automatic simplification of fracti

26Chapter 2 Basic CalculationsK2(CALC)1(Simp)w•F = 3 indicates that 3 is the divisor.• The calculator automatically selects the smallest possible divi

27Basic Calculations Chapter 29. Selecting Value Display ModesYou can make specifications for three value display modes.Fix ModeThis mode lets you spe

28Chapter 2 Basic Calculationsuuuuu To specify the number of significant digits (Sci)1. While the set-up screen is on the display, press 2 (Sci).2. Pr

29Basic Calculations Chapter 2uuuuuTo set the default angle unit Example To change the angle unit from radians to degrees!Zcc1(Deg)•Once you change t

30Chapter 2 Basic Calculationskkkkk Trigonometric Function CalculationsAlways make sure that the default angle unit is set to the required default bef

31Basic Calculations Chapter 2uuuuuTo perform logarithmic/exponential function calculations Example 1 log1.23lb.cdwResult: 0.0899051114 Example 2 ln90

14Chapter 2 Basic Calculations1. Addition and Subtraction Example 6.72 + 9.08g.hc+j.aiwYou can input the operation just as it is written. This capabi

32Chapter 2 Basic CalculationsExample Operation DisplayWhat is the absolute value ofthe common logarithm of3?4| log3| = 0.1249387366K[1(NUM)41(Abs)l(3

33Basic Calculations Chapter 2 Example To calculate x and y when r = 25 and θ = 56°Operation Display!Zcc1(Deg)QK[2(ANGL)[[2(Rec()25,56)w Ans1–13.979–

34Chapter 2 Basic Calculationskkkkk Calculation Priority SequenceThe calculation priority sequence is the order that the calculator performs opera-tio

35Basic Calculations Chapter 2•Display Result Command (^^^^^)When execution reaches the end of a statement followed by a display result com-mand, exec

36Chapter 2 Basic Calculationskkkkk ErrorsAn error message appears on the display and calculation stops whenever the calcu-lator detects some problem.

37Basic Calculations Chapter 2kkkkk Memory Status (MEM)You can check how much memory is used for storage for each type of data. You canalso see how ma

38Chapter 2 Basic Calculations2. Press 1 (DEL).1(DEL)3. Press 1 (YES) to clear the data or 4 (NO) to abort the operation withoutclearing anything.kkk

39Basic Calculations Chapter 21 (Xmin) ... x-axis minimum2 (Xmax)...x-axis maximum3 (Xscl) ...x-axis scale[1 (Ymin) ... y-axis minimum

40Chapter 2 Basic CalculationsThe following menu appears whenever you press 1 (X), while the statistical datamenu is on the display.1 (X)1 (n) ...

41Basic Calculations Chapter 2The following menu appears whenever you press 3 (GRPH) while the statisticaldata menu is on the display.3 (GRPH)1(a)-3(c

15Basic Calculations Chapter 2uuuuuTo use parentheses in a calculation2 × 3 + 4 Example 1–––––––5You should input this calculation as: (2 × 3 + 4) ÷ 5

42Chapter 2 Basic CalculationsInput a storage area number and then press one of the following function keys torecall the corresponding graph function

16Chapter 2 Basic Calculations2(Int÷)hw•Remember that you can use only integers in quotient division operations. Youcannot use expressions such as 2 o

17Basic Calculations Chapter 2(2) Parentheses Calculation Priority SequenceExpressions enclosed inside parentheses are always given priority in a calc

18Chapter 2 Basic Calculations(5) Rounding Example 74 ÷ 3Ahe/dwThe actual result of the above calculation is 24.66666666… (and so on to infinity),whi

19Basic Calculations Chapter 2(3) ReplayWhile the result of a calculation is on the display, you can use d and e to move thecursor to any position wit

20Chapter 2 Basic Calculationsd(You could also press e.)![d(See below for details on makingcorrections.)w(5) Making CorrectionsUse the d and e keys to

21Basic Calculations Chapter 2ddddd![s•When you press ![a space is indicated by the symbol ‘‘t’’. The next func-tion or value you input is inserted at