M240 scientific calculator Antibacterial Edition. White and turquoise colours, with hard-wearing translucid turquoise protective cover. Treated with silver phosphate glass (CAS 308069-39-8) with antibacterial effect (calculator’s body, keys and cover). Ideal to improve hygiene at school, in the office, in environments in contact with food and sanitary environments. With 2-line reading screen (10+2 digits). Simultaneous viewing of expression and result. 240 integrated functions, including 124 scientific functions. Trigonometric functions, parabolic and hyperbolic functions and calculation of up to 6 different types of regression; memory for the storage of averages. Automatic calculation of fractions, cursor keys for navigating through menus, bracket structure allowing up to 24 levels, memory for storing variables, computations using grads, degrees and radians, mutual transformation between rectangular and polar co-ordinates, mutual conversion between decimal and sexagesimal systems, random number generator, percentages, fractions, combinations, permutations, statistical calculations, large keys with structured arrangement, SCI/FIX/ENG notation functions, formation of sums. Power: 2 x AAA batteries (included). Measurements: 16.7 x 8.4 x 1.9 cm. Includes instructions..