File:Animated proof for the formula giving the sum of the first integers 1+2+...+n.gif
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Size of this preview: 800 × 223 pixels. Other resolutions: 320 × 89 pixels | 640 × 178 pixels | 1,860 × 518 pixels.
Original file (1,860 × 518 pixels, file size: 459 KB, MIME type: image/gif, looped, 93 frames, 15 s)
Note: Due to technical limitations, thumbnails of high resolution GIF images such as this one will not be animated.
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 05:23, 11 May 2020 | 1,860 × 518 (459 KB) | Bürgerentscheid | slightly cropped to fit 100 MP limit |
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