Casio Standard Scientific Calculators FX-991ES Plus

Basic Information: Product features: - Non Programmable - Non Graphing - Number of Functions: 417 - Product type - Non Programmable - Non Graphing - Number of digits - 10 + 2 digits - Liquid crystal display - Natural textbook display - Dot matrix display - Key characteristics - Plastic keys - Key functions - Negative Sign - Power Off - Memory - Variables: 9 - Independent Memory (M/M+ / M-) - Answer Memory - Memory Protection - Reset Function - Power supply - Solar & Battery - Approximate battery life Main 3 years - Auto Power Off - Accessories - Hard Case