CASIO FX 991 MS 2ND EDITION 2LINE DISPLAY SCIENTIFIC CALCLULATOR

The image is  a CASIO fx-991MS S-V.P.A.M. (2nd edition) Scientific Calculator! 🔬

This is a very popular and powerful scientific calculator, commonly used by students and professionals in various fields, especially for its advanced features.

Key Features

• Display: It has a two-line display, showing the input expression on the top line and the result on the bottom linE
• Scientific Functions: Includes trigonometric ($\sin, \cos, \tan$), logarithmic ($\log, \ln$), exponential ($e^x, 10^x$), square root ($\sqrt{}$), cube root ($\sqrt[3]{}$), and power ($x^y$) functions.
• Calculus: Has functions for integration ($\int dx$) and differentiation ($d/dx$).
• Equations: Features a $\text{SOLVE}$ and $\text{CALC}$ button for solving equations.
• Advanced Math/Engineering:
  • $\text{S-V.P.A.M.}$ (Super Visually Perfect Algebraic Method) for accurate expression input.
  • Fractions ($a \, b/c, d/c$).
  • Complex numbers ($\text{Conjg}$).
  • Statistics ($\text{S-SUM}, \text{S-VAR}$).
  • Base conversions ($\text{HEX}, \text{DEC}, \text{BIN}, \text{OCT}$).
  • Constants ($\text{CONST}$) and Conversions ($\text{CONV}$).
• Modes: Access to various calculation modes via the $\text{MODE}$ button (e.g., $\text{COMP}$, $\text{SD}$, $\text{REG}$).

It’s a versatile tool capable of handling much more complex calculations than a standard desktop calculator.