{ curly braces

{{ double curly braces

# number sign,hash, pound sign

' Apostrophe

: colon

, comma

- dash

! Exclamation mark(point)

. point, dot, full point, full stop, period

< angle bracket, angle quotes

; semicolon

/ slash, stroke

\ backslash

2^3 "2 to the power of 3", In that case, bn is called "b raised to the n-th power", "b raised to the power of n", or "the n-th power of b".