Numerous web pages use the MathJax
facility for displaying mathematical formulas using LaTeX code using
the $\$$ $\$$.
This page is written for visually impaired students who need to understand
LaTeX.
Text between the dollar-sign characters are translated into
images based on the LaTeX mathematics mode.
Variables and numbers are represented as is, for example, defining
a function as polynomial may be represented as follows
$f(t) = x^2 - 4x + 3$. The caret is used to
represent a superscript while an underscore is used to represent
a subscript, e.g.,
$p(t) = a_2x^2 + a_1x + a_0$
Normally, a string of characters are interpreted as a product
of symbols. Other special symbols include the backslash which indicates
that the next word which follows is a keyword. Groupings of symbols are
done with curly braces, e.g., {...}. Note that certain
symbols exist strictly for visual layout and may therefore not be
immediately useful for the visually impaired.
Fraction |
$\frac{1}{2}$ |
Special functions |
$\sin, \cos, \tan$ |
A derivative w.r.t. time (a dot above the variable) |
$\dot{q}$ |
Second derivative w.r.t. time (two dots above the variable) |
$\ddot{q}$ |
Arrows |
$\rightarrow, \leftarrow, \leftrightarrow$ |
Double-width Arrows |
$\Rightarrow, \Leftarrow, \Leftrightarrow$ |
Greek letters |
$\alpha, \beta, ..., \mu, ... \Omega$ |
Roman letters (upright) for units |
$\textrm{cm}, \mu\textrm{H}$ |
Bold face letters for vectors |
$A\textbf{x} = \textbf{b}$ |
Left and right parentheses (the parentheses are the
full height of the fraction) |
$\left ( \frac{1}{2} \right )$ |
Any feedback or requests for further information are welcome.