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- Formatting - special characters

In addition to general document formatting, the HTML special characters are also supported. These are triggered by the syntax &xxx; where xxx is a short name for the specific special character.

There are many many special characters defined in HTML. Consult one of the numerous HTML references out there for details. Here are a few special characters relevant to this site:

Greek letters

&Omega;   -->   Ω   (Ohms)
&omega;   -->   ω   (radians/second)
&pi;   -->   π
&micro;   -->   µ
&beta;   -->   β
&Theta;   -->   Θ

Fractions

Any fraction with a single digit in the numerator and denominator can be written as &fracXY; where X is the numerator and Y the denominator. For example:

&frac12;   -->   ½
&frac34;   -->   ¾
&frac58;   -->   ⅝

Math symbols

&not;   -->   ¬
&infin;   -->   ∞
&ge;   -->   ≥
&le;   -->   ≤
&ne;   -->   ≠
&cong;   -->   ≅
&sdot;   -->   ⋅
&plusmn;   -->   ±
&times;   -->   ×

Other characters

&deg;   -->   °   (degrees)
&amp;   -->   &
&nbsp;   -->       (non-breaking space)
&lt;   -->   < (less than, avoids interpretation as HTML)
&gt;   -->   > (great than, avoids interpretation as HTML)
&dollar;   -->   $ (avoids triggering MathJax)