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Mathematical
& Punctuation Characters |
It is occasionally
necessary to include special or unusual characters in the text of a
web page. These are represented by three-part symbols which are included
in the text:
ampersand
+ character-code + semi-colon
eg ¢ gives a cent symbol
¢
The codes for a
large range of characters are listed below for your reference. The character
codes are represented in both text and numeric form. We have found that
most but not all work in a browser. Test a character before building
your lifes' work on it..
| Code |
Numeric
Code |
Symbol |
Description |
| ∀ |
∀ |
∀ |
for
all |
| ∂ |
∂ |
∂ |
partial
differential |
| ∃ |
∃ |
∃ |
there
exists |
| ∅ |
∅ |
∅ |
empty
set |
| ∇ |
∇ |
∇ |
backward difference |
| ∈ |
∈ |
∈ |
element
of |
| ∉ |
∉ |
∉ |
not
an element of |
| ∋ |
∋ |
∋ |
contains
as member |
| ∏ |
∏ |
∏ |
product
sign |
| ∑ |
∑ |
∑ |
summation |
| − |
− |
− |
minus
sign |
| ∗ |
∗ |
∗ |
asterisk
operator |
| √ |
√ |
√ |
square
root |
| ∝ |
∝ |
∝ |
proportional
to |
| ∞ |
∞ |
∞ |
infinity |
| ∠ |
∠ |
∠ |
angle |
| ∧ |
∧ |
∧ |
logical
and |
| ∨ |
∨ |
∨ |
logical
or |
| ∩ |
∩ |
∩ |
intersection |
| ∪ |
∪ |
∪ |
union |
| ∫ |
∫ |
∫ |
integral |
| ∴ |
∴ |
∴ |
therefore |
| ∼ |
∼ |
∼ |
similar
to |
| ≅ |
≅ |
≅ |
approximately
equal to |
| ≈ |
≈ |
≈ |
almost
equal to |
| ≠ |
≠ |
≠ |
not
equal to |
| ≡ |
≡ |
≡ |
equal
to |
| ≤ |
≤ |
≤ |
less
than or equal to |
| ≥ |
≥ |
≥ |
greater
than or equal to |
| ⊂ |
⊂ |
⊂ |
subset
of |
| ⊃ |
⊃ |
⊃ |
superset
of |
| ⊄ |
⊄ |
⊄ |
not
a subset of |
| ⊆ |
⊆ |
⊆ |
subset
of or equal to |
| ⊇ |
⊇ |
⊇ |
superset
of or equal to |
| ⊕ |
⊕ |
⊕ |
circled
plus |
| ⊗ |
⊗ |
⊗ |
circled
times |
| ⊥ |
⊥ |
⊥ |
perpendicular
to |
| ⋅ |
⋅ |
⋅ |
dot
operator |
| ⌈ |
⌈ |
⌈ |
left
ceiling |
| ⌉ |
⌉ |
⌉ |
right
ceiling |
| ⌊ |
⌊ |
⌊ |
left
floor |
| ⌋ |
⌋ |
⌋ |
right
floor |
| ⟨ |
〈 |
〈 |
left
pointing angle bracket |
| ⟩ |
〉 |
〉 |
right
pointing angle bracket |
| ◊ |
◊ |
◊ |
lozenge |
| ♠ |
♠ |
♠ |
spade
suit |
| ♣ |
♣ |
♣ |
club
suit |
| ♥ |
♥ |
♥ |
heart
suit |
| ♦ |
♦ |
♦ |
diamond
suit |
| " |
" |
" |
quotation
mark |
| & |
& |
& |
ampersand |
| < |
< |
< |
less
than |
| > |
> |
> |
greater
than |
| Œ |
Œ |
Œ |
Latin
ligature OE |
| œ |
œ |
œ |
Latin
ligature oe |
| Š |
Š |
Š |
Latin
S with caron |
| š |
š |
š |
Latin
s with caron |
| Ÿ |
Ÿ |
Ÿ |
Latin
Y with diaeresis |
| ˆ |
ˆ |
ˆ |
modifier
letter circumflex accent |
| ˜ |
˜ |
˜ |
small
tilde |
|   |
  |
|
en
space |
|   |
  |
|
em
space |
|   |
  |
|
thin
space |
| ‌ |
‌ |
|
zero-width
non-joiner |
| ‍ |
‍ |
|
zero-width
joiner |
| ‎ |
‎ |
|
left
to right mark |
| ‏ |
‏ |
|
right
to left mark |
| – |
– |
– |
en
dash |
| — |
— |
— |
em
dash |
| ‘ |
‘ |
‘ |
left
single quotation mark |
| ’ |
’ |
’ |
right
single quotation mark |
| ‚ |
‚ |
‚ |
single
low-9 quotation mark |
| “ |
“ |
“ |
left
double quotation mark |
| ” |
” |
” |
right
double quotation mark |
| „ |
„ |
„ |
double
low-9 quotation mark |
| † |
† |
† |
dagger |
| ‡ |
‡ |
‡ |
double
dagger |
| ‰ |
‰ |
‰ |
per
mille sign |
| ‹ |
‹ |
‹ |
single
left-pointing angle quotation mark |
| › |
› |
› |
single
right-pointing angle quotation mark |
| € |
€ |
⇔ |
euro
sign |