The document is an instruction manual for Casio's FX-5800P calculator. It describes the features and usage of the calculator.
This manual explains how to prepare the fx-5800P for first use, including removal of the protective insulation piece and battery handling. It also covers resetting the calculator to its default settings and important safety precautions such as proper battery storage and disposal.
The guide details the calculator’s functions, including basic arithmetic, scientific functions, programming, matrix and statistical calculations, as well as data communication between two fx-5800P units. Each section includes step‑by‑step instructions and symbol explanations to help users operate the device efficiently.
Pull the label in the direction shown by the arrow to release and remove the insulation piece.
Keep the battery out of reach of children, do not short‑circuit or burn it, and replace it at least once a year.
Even if the calculator works normally, replace the battery at least once a year.