File:Excel quadratic error.PNG

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Excel_quadratic_error.PNG(685 × 364 pixels, file size: 44 KB, MIME type: image/png)

Summary[edit]

Description
English: Difference in root of quadratic equation using Excel. x^2 + b x + c = 0 as a function of b for two values of c; the direct evaluation of the quadratic formula is compared with the approximation for widely spaced roots, which doesn't have a round-off problem. The squiggly behavior at large b-values is round-off noise.
Date
Source Own work
Author Brews ohare
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File history

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Date/TimeThumbnailDimensionsUserComment
current17:53, 27 April 2010Thumbnail for version as of 17:53, 27 April 2010685 × 364 (44 KB)Brews ohare (talk | contribs)Adjust label positions and change color scheme
16:36, 27 April 2010Thumbnail for version as of 16:36, 27 April 2010657 × 364 (42 KB)Brews ohare (talk | contribs)Added curve for c=4E5
00:04, 27 April 2010Thumbnail for version as of 00:04, 27 April 2010669 × 370 (33 KB)Brews ohare (talk | contribs){{Information |Description={{en|1=Error in finding root of quadratic equation using Excel. x^2 + 5x + 4 = 0}} |Source={{own}} |Author=Brews ohare |Date=2010-04-26 |Permission= |other_versions= }} Category:Microsoft Excel [[Catego
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