This page explains how to place various mathematical characters into HTML documents. The symbols have been grouped into the following categories:
Operation Symbols |
Relation Symbols |
Arrows and Brackets |
Greek Symbols |
Miscellaneous Symbols |
INTRODUCTION
There are several ways to add these symbols to your pages. I
will omit consideration of symbols which appear on the keyboard unless, like
&, they have a special HTML meaning. Of course, for any symbol, a .gif image
can be created and the image displayed using the <img> tag. I will omit
consideration of this strategy as well. In the tables below three codes will be
given fordisplaying a character: the HTML numerical code, a code that can be
placed between a FONT FACE tag, and a special HTML literal code (where
available).
One more thing. To form superscripts or subscripts use the <SUP> or <SUB> tags.
WARNING: Sometimes the numeric code for a symbol is the same as used within FONT FACE tags, but sometimes it's different. For example, \ produces \ while <FONT FACE="Symbol">\</FONT> produces \. Also, while the codes appear to have become "standard" it is possible that some browser will not support certain characters. This will most likely be a problem when using the FONT FACE method.
Operation SymbolsNAME | SYMBOL | NUMERIC CODE |
FONT FACE="Symbol" Code | LITERAL CODE |
---|---|---|---|---|
For all |
|
None | <FONT FACE="Symbol">"</FONT> | None |
There exist |
|
None | <FONT FACE="Symbol">$</FONT> | None |
Not |
|
¬ | <FONT FACE="Symbol">Ø</FONT> | ¬ |
And (meet) |
|
None | <FONT FACE="Symbol">Ù</FONT> | None |
Or (join) |
|
None | <FONT FACE="Symbol">Ú</FONT> | None |
Intersection |
|
None | <FONT FACE="Symbol">Ç</FONT> | None |
Union |
|
None | <FONT FACE="Symbol">È</FONT> | None |
Plus or minus |
|
± | <FONT FACE="Symbol">±</FONT> | ± |
Times |
|
× | <FONT FACE="Symbol">´</FONT> | × |
Partial derivative |
|
None | <FONT FACE="Symbol">¶</FONT> | None |
Solid dot |
|
None | <FONT FACE="Symbol">·</FONT> | None |
Middle dot |
|
· | <FONT FACE="Symbol">×</FONT> | · |
Circle times |
|
None | <FONT FACE="Symbol">Ä</FONT> | None |
Circle plus |
|
None | <FONT FACE="Symbol">Å</FONT> | None |
Division |
|
÷ | <FONT FACE="Symbol">¸</FONT> | ÷ |
Big product |
|
None | <FONT FACE="Symbol">Õ</FONT> | None |
Big sum |
|
None | <FONT FACE="Symbol">å</FONT> | None |
Square root |
|
None | <FONT FACE="Symbol">Ö</FONT> | None |
NAME | SYMBOL | NUMERIC CODE |
FONT FACE="Symbol" Code | LITERAL CODE |
---|---|---|---|---|
Contains the element |
|
None | <FONT FACE="Symbol">'</FONT> | None |
Is a member of |
|
None | <FONT FACE="Symbol">Î</FONT> | None |
Is not a member of |
|
None | <FONT FACE="Symbol">Ï</FONT> | None |
Less than |
|
< |
|
< |
Greater than |
|
> |
|
> |
Isomorphism |
|
None | <FONT FACE="Symbol">@</FONT> | None |
Perpendicular |
|
None | <FONT FACE="Symbol">^</FONT> | None |
Vertical bar |
|
| | <FONT FACE="Symbol">|</FONT> | None |
Vertical line |
|
None | <FONT FACE="Symbol">½</FONT> | None |
Less than or equal |
|
None | <FONT FACE="Symbol">£</FONT> | None |
Greater than or equal |
|
None | <FONT FACE="Symbol">³</FONT> | None |
Not equal to |
|
None | <FONT FACE="Symbol">¹</FONT> | None |
Equivalent to |
|
None | <FONT FACE="Symbol">º</FONT> | None |
Approximately |
|
None | <FONT FACE="Symbol">»</FONT> | None |
Similar to |
|
~ | <FONT FACE="Symbol">~</FONT> | None |
Empty set |
|
None | <FONT FACE="Symbol">Æ</FONT> | None |
Contains properly |
|
None | <FONT FACE="Symbol">É</FONT> | None |
Contains |
|
None | <FONT FACE="Symbol">Ê</FONT> | None |
Not included in |
|
None | <FONT FACE="Symbol">Ë</FONT> | None |
Proper subset of |
|
None | <FONT FACE="Symbol">Ì</FONT> | None |
Subset of |
|
None | <FONT FACE="Symbol">Í</FONT> | None |
NAME | SYMBOL | NUMERIC CODE |
FONT FACE="Symbol" Code | LITERAL CODE |
---|---|---|---|---|
Left brace |
|
[ | <FONT FACE="Symbol">[</FONT> | None |
Right brace |
|
] | <FONT FACE="Symbol">]</FONT> | None |
Left angle bracket |
|
None | <FONT FACE="Symbol"><</FONT> | None |
Right angle bracket |
|
None | <FONT FACE="Symbol">></FONT> | None |
Left curley bracket |
|
{ | <FONT FACE="Symbol">{</FONT> | None |
Right curley bracket |
|
} | <FONT FACE="Symbol">}</FONT> | None |
Double arrow |
|
None | <FONT FACE="Symbol">«</FONT> | None |
Left arrow |
|
None | <FONT FACE="Symbol">¬</FONT> | None |
Up arrow |
|
None | <FONT FACE="Symbol">­</FONT> | None |
Right arrow |
|
None | <FONT FACE="Symbol">®</FONT> | None |
Down arrow |
|
None | <FONT FACE="Symbol">¯</FONT> | None |
Double big arrow |
|
None | <FONT FACE="Symbol">Û</FONT> | None |
Double left arrow |
|
None | <FONT FACE="Symbol">Ü</FONT> | None |
Double up arrow |
|
None | <FONT FACE="Symbol">Ý</FONT> | None |
Double right arrow |
|
None | <FONT FACE="Symbol">Þ</FONT> | None |
Double down arrow |
|
None | <FONT FACE="Symbol">ß</FONT> | None |
Ellipsis |
|
None | <FONT FACE="Symbol">¼</FONT> | None |
Left angle quote |
|
« |
|
« |
Right angle quote |
|
» |
|
» |
NAME | SYMBOL | NUMERIC CODE |
FONT FACE="Symbol" Code | LITERAL CODE |
---|---|---|---|---|
alpha |
|
None | <FONT FACE="Symbol">a</FONT> | None |
beta |
|
None | <FONT FACE="Symbol">b</FONT> | None |
gamma |
|
None | <FONT FACE="Symbol">g</FONT> | None |
delta |
|
None | <FONT FACE="Symbol">d</FONT> | None |
epsilon |
|
None | <FONT FACE="Symbol">e</FONT> | None |
zeta |
|
None | <FONT FACE="Symbol">z</FONT> | None |
eta |
|
None | <FONT FACE="Symbol">h</FONT> | None |
theta |
|
None | <FONT FACE="Symbol">q</FONT> | None |
iota |
|
None | <FONT FACE="Symbol">i</FONT> | None |
kappa |
|
None | <FONT FACE="Symbol">k</FONT> | None |
lambda |
|
None | <FONT FACE="Symbol">l</FONT> | None |
mu |
|
None | <FONT FACE="Symbol">m</FONT> | None |
nu |
|
None | <FONT FACE="Symbol">n</FONT> | None |
xi |
|
None | <FONT FACE="Symbol">x</FONT> | None |
omicron |
|
None | <FONT FACE="Symbol">o</FONT> | None |
pi |
|
None | <FONT FACE="Symbol">p</FONT> | None |
rho |
|
None | <FONT FACE="Symbol">r</FONT> | None |
sigma |
|
None | <FONT FACE="Symbol">s</FONT> | None |
tau |
|
None | <FONT FACE="Symbol">t</FONT> | None |
upsilon |
|
None | <FONT FACE="Symbol">u</FONT> | None |
phi |
|
None | <FONT FACE="Symbol">j</FONT> | None |
chi |
|
None | <FONT FACE="Symbol">c</FONT> | None |
psi |
|
None | <FONT FACE="Symbol">y</FONT> | None |
omega |
|
None | <FONT FACE="Symbol">w</FONT> | None |
NAME | SYMBOL | NUMERIC CODE |
FONT FACE="Symbol" Code | LITERAL CODE |
---|---|---|---|---|
Blank space |
|
None | <FONT FACE="Symbol"> </FONT> | |
Number sign |
|
None | <FONT FACE="Symbol">#</FONT> | None |
Percent |
|
% | <FONT FACE="Symbol">%</FONT> | None |
Ampersand |
|
& | <FONT FACE="Symbol">&</FONT> | & |
Double quote |
|
None | <FONT FACE="Symbol">²</FONT> | " |
Therefore |
|
None | <FONT FACE="Symbol">\</FONT> | None |
Upper bar |
|
None | <FONT FACE="Symbol">`</FONT> | None |
Infinity |
|
None | <FONT FACE="Symbol">¥</FONT> | None |
Degree |
|
° | <FONT FACE="Symbol">°</FONT> | ° |
Long dash |
|
None | <FONT FACE="Symbol">¾</FONT> | None |
Alpha |
|
None | <FONT FACE="Symbol">À</FONT> | None |
Angle sign |
|
None | <FONT FACE="Symbol">Ð</FONT> | None |
Upside-down triangle |
|
None | <FONT FACE="Symbol">Ñ</FONT> | None |
One-half |
|
½ |
|
½ |
Cent sign |
|
¢ |
|
¢ |
Registered sign |
|
® | <FONT FACE="Symbol">Ò</FONT> | ® |
Copyright sign |
|
© | <FONT FACE="Symbol">Ó</FONT> | © |
Trademark sign |
|
™ | <FONT FACE="Symbol">Ô</FONT> | None |
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