This page shows examples of the latex commands needed to produce the equations shown.
Simply copy the code for the equation exactly as shown on the left and paste it into the equation editor.

As previously mentioned, a comprehensive introduction to LaTeX can be found here or here

Hardy-Weinberg Equation

p^2 + 2pq + q^2 = 1

The Haldane Function (Genetic Mapping)

C_{AB} = \frac{1}{2} (1 - e^{-2X_{AB}})

Micaelis-Menton Equation

v = \frac{V_{max}[S]}{K_M + [S]}

Basic Matrix

begin{matrix}
a & b & c\\
d & e & f \\
g & h & i
end{matrix}

Summation

\displaystyle\sum_{i=1}^{10} t_i

Integration

\int_0^\infty \mathrm{e}^{-x}\, \mathrm{d}x