How do i know how the interval notiation set will be? I have attached a graph for an example =)

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(5,-3] or is it [-3,5) plus i am confused with the brackets [ ( )]

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- Sep 11th 2011, 12:19 PMcytotoxictcellInterval notation placement
How do i know how the interval notiation set will be? I have attached a graph for an example =)

like

(5,-3] or is it [-3,5) plus i am confused with the brackets [ ( )] - Sep 11th 2011, 01:57 PMtarheelbornRe: Interval notation placement
Usually you would write this as {x: -3 < x <= 5} and then then interval notation would be (-3, 5].

- Sep 11th 2011, 01:59 PMemakarovRe: Interval notation placement
It's (-3, 5]. The smaller value (taking the sign into account) must be on the left. The parentheses ( and ) correspond to strict inequalities < and >, while square brackets [ and ] correspond to non-strict inequalities $\displaystyle \le$ and $\displaystyle \ge$.

- Sep 11th 2011, 02:15 PMPlatoRe: Interval notation placement
$\displaystyle \begin{gathered}(3,5)\; \equiv \,\left\{ {x:3 < x < 5} \right\} \hfill \\ (3,5]\; \equiv \,\left\{ {x:3 < x \leqslant 5} \right\} \hfill \\ [3,5)\; \equiv \,\left\{ {x:3 \leqslant x < 5} \right\} \hfill \\ [3,5]\; \equiv \,\left\{ {x:3 \leqslant x \leqslant 5} \right\} \hfill \\ \end{gathered} $

- Sep 12th 2011, 03:00 AMHallsofIvyRe: Interval notation placement
- Sep 12th 2011, 03:12 AMPlatoRe: Interval notation placement
- Sep 12th 2011, 03:17 AMProve ItRe: Interval notation placement
- Sep 12th 2011, 03:41 PMcytotoxictcellRe: Interval notation placement
so if something has the infinite symbol '-' <------ similar to that than that symbol is moved to the right?

- Sep 12th 2011, 08:25 PMProve ItRe: Interval notation placement
- Sep 14th 2011, 03:06 PMcytotoxictcellRe: Interval notation placement
- Sep 14th 2011, 03:18 PMPlatoRe: Interval notation placement