For FX-991ES Plus 1st Edition Functional Scientific 10+2 Digit Calculator for Students Features: Standard functions suitable for many scientific qualifications, offering a total of 417 different functions. Includes table generation, fraction calculations, combination, permutation, and statistical functions. Supports new equation mode, random number generation, integration, matrix, vector, differential, and complex number calculations. Ideal for advanced level studies with a dedicated screen display. High-definition dot matrix display with textbook-style output. Unique display capable of showing 10 digits plus 2-digit exponents. Supports textbook display for easy reading and input. This product is a compatible replacement model and not the branded item. The product may feature an alternative logo. Please note this before purchasing. Specification: Type: Scientific Calculator Model: For fx-991ES Plus Function Number: 417 Battery: Button battery (Non-solar) Color: Blue Textbook Display: Yes Digit Display: 10 + 2 Package Includes: 1 x Calculator