Ключевые слова: 3d illustration, abstract, algebra, arithmetic, background, business, calculation, character, clean, crimp, cyan, dense, digit, educate, education, empty, figure, finance, fly, graphic, include, isolated, letter, mathematical, mathematics, mathmaticien, number, numeral, perspective, research, school, science, sign, study, symbol, teaching, text, tornado, turquoise, twister, white,