Robust, professional grade scientific calculator. Logs and antilogs
It has 2-line display shows entry and calculated result at same time
Here are some alternative phrasings for "solar and battery powered":
1. Powered by solar energy and batteries
2. Utilizes solar power and energy storage
3. Energy supplied by solar panels and battery systems
4. Operates using solar and stored battery energy
5. Fueled by sunlight and battery resources
6. Employs solar technology along with battery backup
7. Runs on solar and rechargeable battery power
8. Combines solar energy with battery-operated functionality
Easily handles 1 and 2 variable statistical calculations and three angle modes (degrees, radians, and grads) and scientific and engineering Falsetation modes