Question

10 new mathematical symbols their origin meaning and use in different areas of mathematics

Answer 1

There are lot of new mathematical symbols formed and we are using in everyday life . But some are helpful and basic for understanding mordern mathematics are :

$\left\begin{array}{ccc}\text{symbol}&\text{orgin meaning}&\text{date of earliest used}\end{array}\right$

1. [....] ⇒ matrix ( it is used to solve variable equations.} ⇒1909(Gerhard Kowalewski)
2.$\mathbb{Z}$ ⇒for integer number set ⇒1930(Edmund Landau)
3. $\mathbb{N}$ ⇒for natural number set ⇒1895(Giuseppe Peano)
4.$\mathbb{Q}$⇒for rational number set ⇒1895(Giuseppe Peano)
5. $\forall$ ⇒universal quantifier (for all) ⇒1935(Gerhard Gentzen)
6. Ф ⇒phi/empty set ⇒ 1939(André Weil)
7.$\mathbb{C}$⇒for complex number set ⇒1939(Nathan Jacobson)
8. → ⇒arrow sign ( To denote image of specific elements)⇒1936(Øystein Ore)
9. [x] ≤ x ⇒greatest integer ( it is piece wise function) ⇒1962(Kenneth E. Iverson)
10.[x) ⇒ least integer ( it is also piece wise function)⇒1962(Kenneth E. Iverson)