Casio fx115ms User Manual

x-100MS

(

x-115MS

User’s Guide 2

Additional Functions)

kfx-912MS owners

Please be sure to read the important notice of this manual.

(fx-912MS)

http://world.casio.com/edu_e/

Important!

Please keep your manual and all information handy for future reference.

CASIO ELECTRONICS CO., LTD. Unit 6, 1000 North Circular Road, London NW2 7JD, U.K.

Contents

Before getting started... .......................... 2

kModes .................................................................... 2

Mathematical Expression Calculations

and Editing Functions ............................ 3

kReplay Copy........................................................... 3

kCALC Memory ....................................................... 4

kSOLVE Function .................................................... 4

Scientific Function Calculations............ 5

kInputting Engineering Symbols .............................. 5

Complex Number Calculations .............. 7

kAbsolute Value and Argument Calculation............. 8

kRectangular Form ↔ Polar Form Display .............. 8

kConjugate of a Complex Number .......................... 9

Base-n Calculations ................................ 9

Statistical Calculations ......................... 11

Normal Distribution .................................................. 11

Differential Calculations ....................... 12

Integration Calculations ....................... 13

Power Supply ......................................... 14

Specifications ........................................ 16

See the “fx-95MS/fx-100MS/fx-115MS/fx-570MS/fx991MS User’s Guide” for details about the following items.

Removing and Replacing the Calculator’s Cover/

Safety Precautions/ Handling Precautions/

Tw o -line Display/

Before getting started... (except for “Modes”)/

Basic Calculations/ Memory Calculations/

Scientific Function Calculations/ Equation Calculations/

Statistical Calculations/ Technical Information

E-1

Before getting started...

k Modes

Before starting a calculation, you must first enter the correct mode as indicated in the table below.

• The following table shows the modes and required operations for the fx-100MS and fx-115MS.

fx-100MS and fx-115MS Modes

To perform this type of Perform this To enter

calculation: key operation: this mode:

Basic arithmetic calculations

Complex number calculations

Standard deviation Regression calculations Base-n calculations Solution of equations

• Pressing the F key more than three times displays additional setup screens. Setup screens are described where they are actually used to change the calculator setup.

• In this manual, the name of the mode you need to enter in order to perform the calculations being described is indicated in the main title of each section.

Example:

Complex Number Calculations

Note!

• To return the calculation mode and setup to the initial defaults shown below, press

Calculation Mode: COMP Angle Unit: Deg Exponential Display Format: Norm 1, Eng OFF Complex Number Display Format: Fraction Display Format: ab/c Decimal Point Character: Dot

F 1 COMP

F 2 CMPLX

F F 1 F F 2 F F 3 F F F 1

REG

BASE

EQN

CMPLX

A B 2(Mode) =.

a+bi

E-2

• Mode indicators appear in the upper part of the display, except for the BASE indicators, which appear in the exponent part of the display.

• Engineering symbols are automatically turned off while the calculator is the BASE Mode.

•You cannot make changes to the angle unit or other display format (Disp) settings while the calculator is in the BASE Mode.

• The COMP, CMPLX, SD, and REG modes can be used in combination with the angle unit settings.

•Be sure to check the current calculation mode (SD, REG, COMP, CMPLX) and angle unit setting (Deg, Rad, Gra) before beginning a calculation.

Mathematical Expression Calculations and Editing

COMP

Functions

Use the F key to enter the COMP Mode when you want to perform mathematical expression calculations or edit expressions.

COMP ............................................................

k Replay Copy

Replay copy lets you recall multiple expressions from replay so they are connected as a multi-statement on the screen.

• Example: Replay memory contents:

1 + 1 2 + 2 3 + 3 4 + 4 5 + 5 6 + 6

Multi-statement: 4 + 4:5 + 5:6 + 6

[ and ] to display the expression 4 + 4.

Use

A [(COPY).

Press

E-3

F 1

•You can also edit expressions on the display and perform other multi-statement operations. For more details about using multi-statements, see “Multi-statements” in the separate “User’s Guide.”

• Only the expressions in replay memory starting from the currently displayed expression and continuing to the last expression are copied. Anything before the displayed expression is not copied.

k CALC Memory

• CALC memory lets you temporarily store a mathematical expression that you need to perform a number of times using different values. Once you store an expression, you can recall it, input values for its variables, and calculate a result quickly and easily.

•You can store a single mathematical expression, with up to 79 steps. Note that CALC memory can be used in the COMP Mode and CMPLX Mode only.

• The variable input screen shows the values currently assigned to the variables.

• Example: Calculate the result for Y = X when X = 7 (Result: 58), and when X = 8 (Result: 76).

(Input the function.)

COMP

CMPLX

+ 3X – 12

p y p u p x K + 3 p x , 12

(Store the expression.) C (Input 7 for X? prompt.) 7 = (Input 8 for X? prompt.) C 8 =

• Note that the expression you store is cleared whenever you start another operation, change to another mode, or turn off the calculator.

k SOLVE Function

The SOLVE function lets you solve an expression using variable values you want, without the need to transform or simply the expression.

• Example: C is the time it would take for an object thrown straight up with initial velocity A to reach height B.

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