Calculator with 2-line reading display, 10 + 2 digits. Visualization of expression and result simultaneously. 240 built-in functions, including 124 scientific ones. Trigonometric functions, parabolic and hyperbolic functions and ?? of up to 6 different types of regression; memory for media storage. Automatic calculation of breaks, cursor keys to move through the menus, structuring of parentheses of up to 24 levels, memory to store variables computations in centesimal degree, sexagesimal and arc measure, mutual transformation between rectangular coordinates and polar coordinates, mutual conversion between systems decimal and sexagesimal, generator of random values, percentages, fractions, combinations, permutations, statistical calculations, large keys with structured layout, SCI / FIX / ENG notation functions, summation. Power: 2 AAA batteries (included). Black calculator with sturdy green protective case Measurements: 16.7 x 8.4 x 1.9 cm. Includes instructions.