File:Quadratic formula.svg

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Original file ‎(SVG file, nominally 402 × 124 pixels, file size: 15 KB)

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Summary

Description

English: The Quadratic Formula, used to find the value of x in the equation ax²+bx+c=0

Date

21 October 2012, 23:06:16

Source

Wolfram Mathworld

Author

Jamie Twells

Other versions

This image shows some kind of formula that could be converted to TeX. Storing formulas as images makes it harder to change them. TeX also helps making sure that they all use the same font and size.
A replacement has been proposed:

x={\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}

In your article, replace the image with:

<math>x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}</math>

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Licensing

This work is ineligible for copyright and therefore in the public domain because it consists entirely of information that is common property and contains no original authorship.

Original upload log

The original description page was here. All following user names refer to en.wikipedia.

Date/Time	Dimensions	User	Comment
14 January 2014, 21:21	402 × 124 (15023 bytes)	Jamietwells (talk · contribs)	More of a boarder around the formula
14 January 2014, 15:28	361 × 73 (15027 bytes)	Jamietwells (talk · contribs)	Made by me in Inkscape.

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	02:31, 20 September 2014		402 × 124 (15 KB)	wikimediacommons>OgreBot	(BOT): Reverting to most recent version before archival

File usage

The following pages on the English Wikipedia link to this file (pages on other projects are not listed):

Mathematics

Metadata

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Width	402.14285
Height	124.28571