How to draw large curly brackets?

[alexmahone]

How can I write "g(x) = x if x >= 0 and g(x) = -x for x < 0" on 2 lines using large curly brackets?

 

[earboth]

How can I write "g(x) = x if x >= 0 and g(x) = -x for x < 0" on 2 lines using large curly brackets?

If I understand your question correctly you mean (maybe) this(?):

$ g(x) = \left\{ \begin{array}{rcl} x\ &if& \ x\geq 0 \\ -x\ &if& \ x<0\end{array} \right. $

 

[alexmahone]

That's exactly what I meant. Thanks!

 

[Evgeny.Makarov]

There is also a more specialized cases environment:
$\begin{cases}
x&\text{if }x\ge0\\
-x&\text{if }x<0
\end{cases}$

 

[alphy]

To draw large curly brackets, you can use a graphics software or a mathematical typesetting software such as LaTeX. In LaTeX, you can use the command \left\{ and \right\} to create large curly brackets. For example, \left\{g(x) = x \quad \text{if} \quad x \geq 0 \right\} and \left\{g(x) = -x \quad \text{if} \quad x < 0 \right\} will create two lines of large curly brackets for the equation g(x) = x if x >= 0 and g(x) = -x for x < 0.

Alternatively, you can also use a drawing tool to manually create large curly brackets. Simply draw a vertical line and then add a series of curved lines connecting the top and bottom of the vertical line, creating the curly bracket shape.

As for writing the equation on two lines using large curly brackets, you can use the same method as above or simply write it as:

g(x) = \begin{cases} x & \text{if } x \geq 0 \\ -x & \text{if } x < 0 \end{cases}

This notation is commonly used in mathematics to represent a piecewise function, such as the one given in the question.