The Casio fx‑82MS is a long‑time favorite among students and professionals thanks to its solid build, dependable performance, and familiar key layout. Here’s a detailed overview:

   Key Features

• Display: 2-line LCD (10-digit mantissa, 2-digit exponent)
  Ideal for viewing your entry and result simultaneously—handy for verifying calculations at a glance.

• Math Functions:

  • Basic arithmetic (add, subtract, multiply, divide)

  • Fractions (conversion between fractions and decimals)

  • Percentages, square roots, reciprocals (1/x)

  • Powers and roots (including square, cube, arbitrary powers)

  • Trigonometry: sin, cos, tan + inverse and hyperbolic functions

  • Logarithms: natural (ln), base‑10 (log)

  • Factorial (n!), combinations nCr, permutations nPr

• Memory:

  • A → B: quick variable storage & recall

  • Constant (K) mode for repeated multiplications/divisions

• Modes & Conversion:

  • Degrees, radians, grads (angle modes)

  • Coordinate and numeric format conversions

• Engineering & Statistical:

  • Calc statistics: mean, standard deviation, linear regression

  • Engineering notation (+ENG)

• Engineering-Grade Build:

  • Hard plastic keys with click feedback

  • Sturdy, compact housing with sliding hard case

  • Runs on AA battery + backup solar cell

  • Slim size (≈156 × 77 × 10 mm) and light weight

• User Interface:

  • Intuitive keystrokes via dedicated buttons

  • No algebraic logic input (not programmable), but straightforward for calculated methods