The Deli D82MS Scientific Calculator is a versatile and reliable tool designed for students, teachers, engineers, and professionals. Featuring 240 scientific and algebraic functions and a 10+2 digit, dual-line display, it supports clear and efficient calculation workflows. Key features include: 240 built-in functions, covering trigonometry, logarithms, exponential operations, statistics, regression, fractions, permutations, combinations, and more 10+2 digit display in a two-line, textbook-style layout for input/output visibility Replay/edit functionality (multi-replay) to effortlessly review and modify previous calculations Compact and durable design: plastic casing (≈158 × 85 × 22 mm), battery-powered (AAA/coin), with auto/manual power-off and optional slide-on protective cover Visual precision: high-resolution screen and standard algebraic input method (VPAM) for seamless math entry Deli D82MS scientific calculator 240 function calculator Bangladesh 10+2 digit calculator BD Dual-line display scientific calculator Best student calculator Bangladesh Deli calculator original Bangladesh