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Casio FX-991ES Support Question

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Question posted by vegasnhu on March 18th, 2014

How Many Variables Available For Storing Casio Fx-991es

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Related Casio FX-991ES Manual Pages

User Guide - Page 4

... the following shows an example of the actual key operation you want to initialize the calculator and return the calculation mode and setup to change without notice. • In no event shall CASIO Computer Co., Ltd. In this User's Guide, cursor key operation is selected by any kind whatsoever by the number key...
User Guide - Page 8

... to assign a value to recall the variable's value. The keypad will unshift and this indicator will disappear when you press 1t(STO). The calculator is standing by for input of decimal places is grads. The display currently shows an intermediate result of significant digits is a value stored in effect. The alpha input mode...
User Guide - Page 11

... following procedure to turn display of the frequency (FREQ) column of the two available settings (Norm1, Norm2) determines the range in which results will be displayed in nonexponential format. E-9 The decimal point for input values is applied for calculation results . Norm1: 10-2 > x, x > 1010 Norm2: 10-9 > x, ...
User Guide - Page 13

... Math format, each key operation uses up to 14 characters at the end of a calculation, immediately before the = key is displayed, you can omit one or more than one... × '(3), etc. • Before a prefix symbol (excluding the minus sign): 2 × h123, etc. • Before a variable name, constant, or random number: 20 × A, 2 × π, 2 × i, etc. Example: sin 30 = LINE...
User Guide - Page 27

... pressing A, press the G key. This section uses the COMP Mode (N1) to Perform a Series of Calculations Example: To divide the result of individual values. E-25 Using Answer Memory to demonstrate how you execute a calculation using any one . Variables Six variables named A, B, C, D, X, and Y can use memory. In this case, however, the imaginary part will be...
User Guide - Page 28

... when there is the key operation for inserting the M variable. Independent Memory Overview • The following is any value other than zero stored in independent memory. • Independent memory contents are maintained even if you can also insert the M variable into a calculation, which tells the calculator to use the current independent memory contents at that...
User Guide - Page 29

... whose contents you want to check the contents of the variables. k Variables (A, B, C, D, X, Y) Variable Overview • You can include variables inside of variable A ty(A) • The following shows how you press the A key, change the calculation mode, or turn off the calculator. To clear the contents of =. This clears independent memory and causes the "M" indicator to...
User Guide - Page 30

... use CALC in the COMP Mode (N1) and in the CMPLX Mode (N2). Example: Y = 2X, A = X2 + X + 3 k Example Calculation Using CALC To start a CALC operation after inputting an expression, press the s key. u Expressions that contain variables Example: 2X + 3Y, 5B + 3i, 2AX + 3BY + C u Multi-statements Example: X + Y : X (X + Y) u Expressions with CALC. Current value of the...
User Guide - Page 31

... a3 *8 Value of a5 Using SOLVE (COMP) SOLVE uses Newton's Method of syntax for the solution variable. E-29 XB = C + D, B (Solves for B.) The following types of approximation to solve ... that contains an integral, derivative, Σ( function, Pol( function, Rec( function, or multi-statement. Appendix Calculate an +1 = an + 2n (a1 = 1) as XY + C = 0.) • SOLVE cannot be...
User Guide - Page 34

... interrupt an ongoing operation by pressing A. All of functions. Appendix sinh 1 = 1.175201194, cosh-1 1 = 0 E-32 Function Calculations This section explains how to you depends on the calculation mode you are in. Press the number key that are available in this section are mainly about the functions that corresponds to the function you want to...
User Guide - Page 36

... greater. • You cannot input a tol value when using the Gauss-Kronrod method of numerical integration. ∫( f(x), a, b, tol) f(x): Function of X (All non-X variables are not used as the calculator's default angle unit. • Integration calculations can take considerable time to complete. • A smaller tol value provides better precision, but it also causes the...
User Guide - Page 38

... on centered difference approximation. discontinuous points in x values - inclusion of the tolerance range. inclusion of X (All non-X variables are treated as the calculator's default angle unit. • A "Time Out" error occurs when a differential calculation ends without the ending condition being fulfilled. • A smaller tol value provides better precision, but it also causes the...
User Guide - Page 39

... are integers in the range of -180° < θ < 180°. • Calculation result θ is displayed using the calculator's default angle unit. • Calculation result r is assigned to variable X, while θ is assigned to Y. Converting to Rectangular Coordinates (Rec) Rec(r,θ) r : Specifies r value of polar coordinate θ : Specifies θ value of -1 × 1010...
User Guide - Page 46

... argument of 2 + 2i. *1 Absolute Value *2 Argument Statistical Calculation (STAT) All calculations in this section are performed in the STAT Mode (N3). k Statistical Calculation Types Key Menu Item 1 1-VAR 2 A+BX 3 _+CX2 4 In X 5 e^X 6 A•B^X 7 A•X^B 8 1/X Statistical Calculation Single-variable Linear regression Quadratic regression Logarithmic regression e exponential regression...
User Guide - Page 47

STAT STAT Single-variable Statistics Paired-variable Statistics • The first line of the STAT editor screen shows the value for the ... you can use the FREQ column to six of its digits in the group of data) of statistical calculation you turn on the Statistical Display item on the calculator's setup screen, a column labeled "FREQ" will also be included on the STAT editor screen. STAT...
User Guide - Page 48

... on the type of statistical data you selected, and on the Statistical Display setting of the calculator's setup screen. You cannot edit parts of the existing data. Inserting a Line (1) On the... allowed on the STAT editor screen. • m, 1m(M-) operations • Assignment to variables (STO) Precautions Concerning Sample Data Storage Sample data you input is deleted automatically whenever you ...
User Guide - Page 49

...(STAT)3(Edit). (2) Press 2(Del-A). • This clears all of the current input/output format setting on the calculator's setup screen. Note • Note that you input with the STAT editor screen. Single-variable Statistics Paired-variable Statistics STAT Menu Items Common Items Select this menu item: 1Type 2Data 3Edit 4Sum 5Var 6MinMax When...
User Guide - Page 63

... the number table is always used for value input. • You can be used as values (the current variable assigned to the variable or stored in independent memory). • Only variable X can specify either values or calculation expressions (which must produce a numeric result) for the number table being generated. k Supported Function Types • Except for...
User Guide - Page 68

... before π, e, variables, scientific constants (2π, 5A, πA, 3mp, 2i, etc.), functions with parentheses (2'(3), Asin(30), etc.) 9. Example: 1/2i= 1/(2i)= 1 ÷ 2i = 1 i 2 1 ÷ (2i) = - 1 i 2 k Stack Limitations This calculator uses memory areas called stacks to right when both types are performed from left to temporarily store lower calculation priority sequence...
User Guide - Page 73

... the button battery from the calculator causes independent memory contents and values assigned to variables to use the calculator as long as there is enough light to perform a routine that you continue to use the calculator if its button battery is low. Replacing the Battery Dim display figures when available lighting is operating normally, replace...

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