FX-991ES-PLUS Scientific Calculator

Features:
Large LCD display, simple and bright buttons, ergonomic design allows the numbers to be read easily and quickly.
Highly visible printing, easy-to-press cursor keys and function keys.
The hard outcase that's attachable and detachable in both the directions, wear resistant and drop-resistant.
Support calculate fractions, exponents, logarithms, powers, and square-roots and more.
Support calculate statistic trigonometry, permutation and combination, integration, differential, simultaneous and polynomial equation, vector, matrix, complex numbers, Base-n calculations and more.
Support the conversion of number systems between DEC, HEX, BIN, OCT.
Enhanced student comprehension and improved math class efficiency.
Perfect for engineering, polytechnic and science students.