LIST OF PEOPLE WHO INVENTED THE SIGNS IN MATHS

The signs or symbols used in mathematics have evolved over centuries, and it's difficult to attribute their invention to specific individuals. However, I can provide you with a list of mathematicians who have contributed to the development and popularization of mathematical symbols:

1. René Descartes (1596-1650): Descartes introduced the concept of using letters from the alphabet at the end of the 16th century to represent unknowns or variables.

2. Pierre de Fermat (1601-1665): Fermat developed shorthand notation for area and volume and introduced the modern notation for parentheses and exponentiation.

3. Gottfried Wilhelm Leibniz (1646-1716): Leibniz is famous for developing calculus independently of Isaac Newton. He introduced the notation for differentiation and integration, including the integral sign (∫) and the symbol "d" for differentials.

4. Leonhard Euler (1707-1783): Euler made significant contributions to mathematical notation, including introducing the letter "e" for the base of natural logarithms, the Greek letter sigma (Σ) for summation, and the notation for trigonometric functions.

5. Augustin-Louis Cauchy (1789-1857): Cauchy introduced much of the notation used in analysis, including limiting processes and inequalities, such as the symbols for limits (lim) and the greater than or equal to sign (≥).

6. George Boole (1815-1864): Boole introduced algebraic symbols to represent logical operations, which laid the foundation for Boolean algebra and became essential in computer science.

7. John Venn (1834-1923): Venn introduced the diagrams that bear his name, commonly used to illustrate relationships between sets.

It's important to note that the development of mathematical symbols was a collaborative effort over centuries, influenced by many mathematicians and scholars. The final forms and usages of various symbols emerged through a process of refinement and consensus within the mathematical community.