## LaTeX – Multiline equations, systems and matrices

A great posting for writing Math Equation in Latex

This is the 3rd post in the series. Previous ones:

Many of the examples shown here were adapted from the Wikipedia article Displaying a formula, which is actually about formulas in Math Markup.

You can present equations with several lines, using the array statement. Inside its declaration you must :

• Define the number of columns
• Define column alignment
• Define column indentation
• Indicate column separator with & symbol &

Example: {lcr} means: 3 columns with indentations respectively left, center and right

\begin{array}{lcl} z & = & a \\ f(x,y,z) & = & x + y + z \end{array}

$latex \begin{array}{lcl} z & = & a \\ f(x,y,z) & = & x + y + z \end{array} &fg=aa0000&s=1$

\begin{array}{rcr} z & = & a \\ f(x,y,z) & = & x + y + z \end{array}

\$latex \begin{array}{rcr} z…

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