# Attention Math Dopers

**URL:** <https://boards.straightdope.com/t/attention-math-dopers/91855>\
**Category:** Miscellaneous and Personal Stuff I Must Share\
**Created:** [November 6, 2001, 9:02pm UTC](https://boards.straightdope.com/t/attention-math-dopers/91855 "2001-11-06T21:02:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Cabbage](https://avatars.discourse-cdn.com/v4/letter/c/f07891/32.png) [@Cabbage](https://boards.straightdope.com/u/Cabbage)\
**Post date:** [November 6, 2001, 9:02pm UTC](https://boards.straightdope.com/t/attention-math-dopers/91855/1 "2001-11-06T21:02:24Z")

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[Math World](http://mathworld.wolfram.com) is back! I know some of you (including myself) used to use this as a reference (and post links to it when appropriate) before it went offline a little over a year ago.

For those of you not familiar with it, it’s a fairly extensive online math reference. While it doesn’t cover _everything_, it’s by far the most comprehensive online mathematics encyclopedia I’m aware of.