Need help in math? Our calculators let you excel in math. Mathematics is the study of various topics related to numbers, structure, and change. When mathematical structures are used to model real phenomena, they can provide predictions about nature. Practical math has been a human activity for many years. The research required to solve some of the most challenging problems can take years of inquiry. Since the work of Giuseppe Peano, David Hilbert, and others in the 19th century, it has been widely believed that scientific research is conducted by carefully analyzing and criticizing the correctness of selected axioms and definitions. The evolution of mathematics began during the Renaissance, when scientists began to develop new ideas and methods. It is widely used in various scientific fields. The emergence of applied mathematics has led to new disciplines such as game theory and statistics. The history of mathematics shows that the first major abstract was probably numbers. It was the realization that a lot of numbers have something in common.