Casio fx-50F User Manual

Page of 80
E-4
Contents
Getting Started .........................................................................................1 
Before using the calculator for the fi rst time... .................................................................... 1
Resetting the Calculator to Initial Defaults.......................................................................... 1
About this Manual ............................................................................................................... 1 
Safety Precautions ...................................................................................2
Operating Precautions .............................................................................3
Before starting a calculation... ................................................................6 
Turning On the Calculator ................................................................................................... 6
Key Markings ...................................................................................................................... 6
Reading the Display ........................................................................................................... 7
Calculation Modes and Setup .................................................................7 
Selecting a Calculation Mode ............................................................................................. 7
Calculator Setup ................................................................................................................. 8
Clearing the Calculation Mode and Setup Settings .......................................................... 10 
Inputting Calculation Expressions and Values ....................................10 
Inputting a Calculation Expression (Natural Input) ........................................................... 10
Editing a Calculation ......................................................................................................... 12
Finding the Location of an Error ....................................................................................... 13 
Basic Calculations ..................................................................................14 
Arithmetic Calculations ..................................................................................................... 14
Fractions ........................................................................................................................... 14
Percent Calculations ......................................................................................................... 16
Degree, Minute, Second (Sexagesimal) Calculations ...................................................... 17 
Calculation History and Replay .............................................................18 
Accessing Calculation History  ......................................................................................... 18
Using Replay .................................................................................................................... 19 
Calculator Memory Operations .............................................................19 
Using Answer Memory (Ans)  ........................................................................................... 19
Using Independent Memory ............................................................................................. 21
Using Variables ................................................................................................................. 22
Clearing All Memory Contents ......................................................................................... 23 
Using
π 
π 
,
e
, and Scientifi c Constants .....................................................23 
Pi ( 
π ) and Natural Logarithm Base  
e
 ................................................................................ 23
Scientifi c Constants .......................................................................................................... 24
Scientifi c Function Calculations  ..........................................................26 
Trigonometric and Inverse Trigonometric Functions ......................................................... 27
Angle Unit Conversion ...................................................................................................... 27
Hyperbolic and Inverse Hyperbolic Functions .................................................................. 28
Exponential and Logarithmic Functions ........................................................................... 28
Power Functions and Power Root Functions .................................................................... 29