The Deli ED991ES Scientific Calculator is a powerful, original calculator designed for students, engineers, and professionals. It features 417 scientific functions, a two-line textbook-style display, and dual power (solar + battery), making it ideal for accurate and fast calculations. Whether you're solving equations, working with matrices, calculating complex numbers, or handling statistics and trigonometry, this calculator has you covered. 🔹 Model: Deli ED991ES 🔹 Functions: 417 scientific functions 🔹 Display: 2-line natural textbook display 🔹 Power Source: Dual (Solar + Battery) 🔹 Suitable for: SSC, HSC, University Students, Engineers 🔹 Original Deli product with warranty 🔹 Available at: Jigatola, Farmgate, Kalabagan, Rajabazar, Monipuripara 🔹 Distributed by: Bornomala Books & Stationery 🔹 Buy online or in-store anywhere in Bangladesh --- Deli ED991ES scientific calculator price in Bangladesh Original Deli calculator Bangladesh Best scientific calculator for students in BD Buy Deli 417 function calculator online Deli ED991ES review BD Dual power scientific calculator Bangladesh Deli ED991ES vs Casio fx-991ES