Casio fx-991EX ClassWiz

- Functions: Includes numerical integration, differentiation, 4x4 matrix calculations, vector calculations, and simultaneous/polynomial equation solvers up to degree 4.

- Display: High-resolution LCD that displays fractions, powers, and logarithms exactly as they appear in textbooks.

- Power: Dual-powered via a solar cell and one LR44 battery.

- Spreadsheet: An industry-first feature for scientific calculators, allowing for basic data management in up to 5 columns and 45 rows.

Best choice for Uni undergraduates.

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