Calculator FX-991ES Plus Scientific Calculator 417 Functions 2 Line Display Two way power 417 Functions Full Dot Display Integration / Differential Equation calculation Matrix calculations / Vector calculations Complex number calculation CALC function / SOLVE function Base-n calculation / Fraction calculation Combination and Permutation / Logarithm log List-based STAT data editor / Standard deviation / Paired-variable statistics regression analysis / Logical operations Table function / 40 scientific constants / 40 metric conversions (20 conversion pairs) / 9 variable memories Comes with new slide on hard case

Easily compute the most complex of mathematical problems, equations, and scientific formulae with the FX-991ES Plus scientific calculator. The 991ES calculator works with a dual power source, the primary being a built-in solar power cell that keeps it running for hours without any batteries. Moreover, with batteries installed, you can safely use it for weeks together without worrying of replacing them. You can practice all sorts of mathematical problems that appear at the GCSE, A Levels and above, with this FX-991ES Plus scientific calculator. The 991ES calculator resolves complex calculations, integrations, and logarithms in just a few steps.