



 Contents
 Contents
| Getting Started ......................................................................................... | 1 | 
| Before using the calculator for the first 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, e, and Scientific Constants ..................................................... | 23 | 
| Pi (π) and Natural Logarithm Base e ................................................................................ | 23 | 
| Scientific Constants.......................................................................................................... | 24 | 
| Scientific 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 |