Within the Connexions
Project, MathML content has been
chosen to render mathematical expressions. Although most
common expressions can be rendered using MathML, it is known
that not all expressions are supported. New notations are
constantly being developed and various academic communities
often use specialized notations. The evolution of MathML is
an understandably slow process. Because of the diversity of
languages and academic cultures, it is impossible to encode
all of the possible notations or even the bulk of mathematical
notation in MathML content. However, seeing the necessity for
extensibility, the MathML recommendation allows for extensions
to be written for MathML using the csymbol
tag.
A list of extensions written by the Connexions Project can be
found on
Mountainbunker.
Content  ContinuousTime Notation  DiscreteTime Notation 

Time 


Frequency 


Angular Frequency 


Signal 


Fourier Transform 

