Mathematical markers refer to symbols or letters commonly used in mathematics to express specific mathematical meanings or symbolic relationships. For example, the plus sign "+"means addition, the multiplication sign "×" means multiplication, the equal sign "=" means equal sign and so on. Mathematical markers can make mathematical thinking more precise and concise, and facilitate mathematical expression and calculation.

Mathematical markers can also be used to represent mathematical formulas and equations. For example, the formula for the area of a circle is S=πr2, where π and R are mathematical markers. In addition, mathematical markers can also be used to describe concepts such as vector, matrix, calculus and geometry.

Mathematical markers are widely used in modern science and technology, not only in mathematics, but also in physics, engineering, computer science and many other fields. Therefore, a deep understanding and mastery of mathematical markers is the only way for every math enthusiast.