File:Animated proof for the formula giving the sum of the first integers 1+2+...+n.gif

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Original file ‎(1,860 × 518 pixels, file size: 459 KB, MIME type: image/gif, looped, 93 frames, 15 s)

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English: Animated proof for the formula giving the sum of the first integers 1+2+...+n.
This formula is similar to the method for finding the area of a triangle (or 'a discrete step triangle' or 'stair-stepped triangle').
Français : Preuve de la formule donnant la somme des premiers entiers. Astuce dite du "petit Gauss".
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Author Vincent Pantaloni

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Date/TimeThumbnailDimensionsUserComment
current11:23, 11 May 2020Thumbnail for version as of 11:23, 11 May 20201,860 × 518 (459 KB)Bürgerentscheid (talk | contribs)slightly cropped to fit 100 MP limit
12:37, 4 December 2015Thumbnail for version as of 12:37, 4 December 20151,911 × 571 (461 KB)V.pantaloni (talk | contribs)User created page with UploadWizard

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