This guide explains how to operate the HP SmartCalc 300 scientific calculator, covering everything from powering the device to performing advanced calculations. It includes safety precautions, battery handling, and display adjustments.
Key sections describe the calculator’s display, calculation modes, input formats, and error handling, as well as step‑by‑step procedures for initializing settings, using the hard case, and maintaining the device.
| Display type | 31‑dot × 96‑dot LCD screen |
|---|---|
| Maximum visible characters | 14 characters |
| Input capacity per expression | 99 bytes |
Press the ON key to turn the calculator on, and press the OFF key to turn it off.
Enter the contrast adjustment screen with the SETUP key, then use the + and – keys to adjust contrast and press AC to confirm.