E fx-55 PLUS User’s Guide CASIO Worldwide Education Website CASIO EDUCATIONAL FORUM Contents Contents Important Information ..............................................................2 Sample Operations ...................................................................2 Initializing the Calculator .........................................................2 Safety Precautions ...................................................................2 Handling Precautions ...............................................................2 Removing the Hard Case .........................................................3 Turning Power On and Off .......................................................3 Adjusting Display Contrast .....................................................3 Key Markings ............................................................................3 Reading the Display .................................................................4 Configuring the Calculator Setup ...........................................4 Inputting Expressions and Values ..........................................5 Toggling Calculation Results ..................................................8 Basic Calculations ....................................................................8 Remainder Calculations ........................................................11 Function Calculations ............................................................12 Calculation Ranges, Number of Digits, and Precision ........14 Errors .......................................................................................15 Before Assuming Malfunction of the Calculator.....