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You can use Latex notation for math. For tips see General > Using Forum

# You can use Latex notation for math formulas here

edited July 2015
The math delimiters are  $$...$$  for displayed math (equation on a separate line), and  $$...$$  or  $...$  for in-line math (equation embedded in text paragraph).

Example 1: Algebra
The solutions to quadratic equation $$ax^2 + bx + c = 0$$ are
$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$

The solutions to quadratic equation $$ax^2 + bx + c = 0$$ are$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$

Example 2: Complex Numbers
\begin{equation*}
e^{\pi i} + 1 = 0
\end{equation*}

e^{\pi i} + 1 = 0

Example 3: Calculus

\int_0^\infty \frac{x^3}{e^x-1}\,dx = \frac{\pi^4}{15}

\int_0^\infty \frac{x^3}{e^x-1}\,dx = \frac{\pi^4}{15}

Example 4: Linear Algebra
$$A_{i,j} = \begin{bmatrix} a & b \\ c & d \end{bmatrix}$$

$$A_{i,j} = \begin{bmatrix} a & b \\ c & d\end{bmatrix}$$

Example 5: Continued Fractions

x = a_0 + \cfrac{1}{a_1
+ \cfrac{1}{a_2
+ \cfrac{1}{a_3 + \cfrac{1}{a_4} } } }

 x = a_0 + \cfrac{1}{a_1 + \cfrac{1}{a_2 + \cfrac{1}{a_3 + \cfrac{1}{a_4} } } }