Mathematics symbols with their names??

1. + : Plus sign
2. - : Minus sign
3. x : Multiplication sign
4. ÷ : Division sign
5. = : Equal sign
6. < : Less than sign
7. > : Greater than sign
8. ≤ : Less than or equal to sign
9. ≥ : Greater than or equal to sign
10. √ : Square root symbol
11. π : Pi symbol
12. ∞ : Infinity symbol
13. % : Percent symbol
14. ∑ : Summation symbol
15. ∫ : Integral symbol
16. ∆ : Delta symbol
17. θ : Theta symbol
18. ∠ : Angle symbol
19. ∝ : Proportional to symbol
20. ∩ : Intersection symbol