AB-991ES PLUS

Description

About the AB-82ES Plus

The AB-82ES Plus is designed for students who want mathematical expressions to appear in a familiar, textbook-like format without paying for advanced modes they may not need.

Its 252 functions cover fractions, powers, roots, trigonometry, coordinate conversion, combinations and permutations, prime factorisation, random integers, statistics, regression and table calculations.

It sits between the straightforward AB-82MS and the more advanced AB-991ES Plus and AB-991EX.

Key Features

• 252 functions
• Natural textbook display
• Non-programmable design
• Fractions, powers, roots and trigonometry
• Coordinate conversion
• Combinations and permutations
• Prime factorisation and random integers
• Statistics and regression
• Table function

Best For

School and early-college students who want a readable natural display but do not require matrix, vector, complex-number or numerical-calculus modes.

Warranty

Backed by ABAKO’s one-year replacement warranty on eligible purchases through authorised channels. Keep proof of purchase; warranty terms apply.

Recommended for O Level and A Level Mathematics

ABAKO recommends the AB-991ES Plus for Cambridge O Level Mathematics Paper 2 and Cambridge International AS & A Level Mathematics examinations.

Its non-programmable, non-graphical design and numerical—not symbolic—calculation functions match Cambridge’s published calculator requirements. Students must still show all required working.

Calculators are not permitted in Cambridge O Level Mathematics Paper 1.