Environmentally friendly 10-digit scientific calculator is made with 40 percent recycled plastic and built-in antimicrobial protection. Built-in antimicrobial protection reduces the growth of microbes and bacteria that can cause stains and odors. Excellent for biology, general math, algebra, geometry, trigonometry, statistics and science. Calculator multiplies, divides, subtracts, and adds fractions in traditional numerator/denominator format. Offers three memories, trigonometric functions, degrees/radians/grads, hyperbolics, polar/rectangular conversion, common and natural logarithms, DMS/decimal degrees, fractions/decimal conversions, universal powers and roots, and reciprocals and factorials. Runs on battery power.