This document introduces some basic functions and operation examples of a calculator, including decimal digit retention, significant digit retention, random number generation, coordinate transformation, combination and permutation, statistical calculations, etc. It also provides methods for constant calculations.
This manual explains how to operate the Casio fx-220 calculator, covering its various calculation modes such as DEG, RAD, GRA, COMP, SD, FIX, SCI and NORM. It describes basic arithmetic, fraction, percentage, and scientific calculations, as well as special functions and register usage.
Physical details are also listed, including operating temperature (0 °C‑40 °C), dimensions (10 mm × 71 mm × 134 mm), weight (67 g with batteries) and battery type (two G13/LR44 cells). Safety warnings and maintenance instructions are provided to ensure reliable use. This manual is written in Japanese.
| Operating temperature | 0 °C‑40 °C |
|---|---|
| Dimensions (H × W × D) | 10 mm × 71 mm × 134 mm |
| Weight (including batteries) | 67 g |
| Battery type | 2 × G13 (LR44) |
| Number of registers | 6 |
It uses two G13 (LR44) batteries.
The calculator provides six registers for storing intermediate results.
The device can be used from 0 °C up to 40 °C.
The calculator measures 10 mm high, 71 mm wide and 134 mm deep.