http://www.ruanyifeng.com/blog/2007/07/english_punctuation.html
. period or full stop period
, comma comma
: colon colon
; semicolon semicolon
! exclamation mark exclamation mark
? question mark
- hyphen hyphen
* asterisk asterisk
' apostrophe possessive symbol, ellipsis inside a word
— dash dash_
underscore
' ' single quotation marks single quotation marks
" ” double quotation marks double quotation marks
( ) parenthesis or round brackets parenthesis
[ ] square brackets square brackets
<> Angle brackets angle brackets
{} curly brackets or braces curly brackets
《 》French quotes French quotes; book title number
... ellipsis ellipsis
¨ tandem colon
" ditto ditto
" parallel double line
/ slash or virgule or diagonal mark
& ampersand = and
~ tilde or swung dash tilde
§ section; division section number
→ arrow arrow; see number
| vertical bar vertical bar
\ backslash backslash
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Attachment: English names of some mathematical symbols
+ plus plus sign; plus
minus minus minus sign; minus sign
± plus or minus plus and minus sign
× is multiplied by multiplication sign
÷ is divided by division sign
= is equal to equal to
≠ is not equal to not equal to
≡ is equivalent to
is equal to or approximately equal to
≈ equal to or approximately equal to ≈ equal to
＜ less than sign
＞ more than or greater than sign
≮ is not less than
≯ is not more than
≤ is less than or equal to
≥ is more than or equal to
% per cent per cent…
‰ per mill thousandth…
∞ infinity infinity
∝ varies as Proportional to
√ (square) root
∵ since; because because
∴ hence so
∷ equals, as (proportion)
∠ angle
⌒ semicircle semicircle
⊙ circle circle
○ circumference circumference
△ triangle triangle
⊥ perpendicular to
∪ union of
∩ intersection of
∫ the integral of … Integral
∑ (sigma) summation of sum
° degree degrees
′ minute minutes
″ second seconds
# number
℃ Celsius system degrees Celsius
@ at at