Search: keyword:stretch
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BP525 |
| Some zoomed-in (cropped) version of an image of a hollow circle vs. not so. |
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BP536 |
| All gears can make complete turns vs. not so. |
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BP557 |
| Equal horizontal length vs. not |
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BP559 |
| Cross section of a cube vs. not cross section of a cube |
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COMMENTS
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All examples in this Problem are solid black shapes.
This problem is absurdly hard. It makes a good extreme example. - Aaron David Fairbanks, Nov 23 2020 |
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CROSSREFS
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Adjacent-numbered pages:
BP554 BP555 BP556 BP557 BP558  *  BP560 BP561 BP562 BP563 BP564
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KEYWORD
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hard, nice, precise, allsorted, notso, stretch, challenge, left-narrow, perfect
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CONCEPT
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cube (info | search), cross_section (info | search)
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WORLD
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fill_shape [smaller | same | bigger]
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AUTHOR
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Leo Crabbe
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BP812 |
| Aesthetically pleasing vs. not so. |
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BP813 |
| Representations of natural mathematical objects vs. representations of arbitrary objects. |
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BP816 |
| Cross section of a cylinder vs. not cross section of a cylinder |
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BP860 |
| Finitely many copies of the shape can be arranged such that they are locked together vs. not so. |
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CROSSREFS
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This is a generalisation of BP861.
Adjacent-numbered pages:
BP855 BP856 BP857 BP858 BP859  *  BP861 BP862 BP863 BP864 BP865
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KEYWORD
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hard, nice, stub, precise, stretch, unstable, hardsort, challenge, creativeexamples, perfect, pixelperfect
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CONCEPT
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tiling (info | search)
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WORLD
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fill_shape [smaller | same | bigger]
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AUTHOR
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Leo Crabbe
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COMMENTS
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A spot-the-difference exercise.
Arguably invalid (solution not simple). |
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CROSSREFS
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Adjacent-numbered pages:
BP915 BP916 BP917 BP918 BP919  *  BP921 BP922 BP923 BP924 BP925
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KEYWORD
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less, precise, convoluted, arbitrary, stretch, unstable, left-finite, left-full, perfect, pixelperfect, experimental, funny
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CONCEPT
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imperfection_small (info | search), specificity (info | search)
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WORLD
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bmp [smaller | same | bigger]
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AUTHOR
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Aaron David Fairbanks
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BP924 |
| Polygons where all sides are different lengths vs. Polygons where not all sides are different lengths. |
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COMMENTS
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All examples in this Problem are outlines of convex polygons.
This is a generalisation of scalene triangles to any polygon. |
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CROSSREFS
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The left side implies the right side of BP329 (regular vs. irregular polygons), but the converse is not true.
The left side of BP329 implies the right side, but the converse is not true.
Adjacent-numbered pages:
BP919 BP920 BP921 BP922 BP923  *  BP925 BP926 BP927 BP928 BP929
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EXAMPLE
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Any scalene triangle will fit on the left, because no two sides are equal.
However, any regular polygon will not fit on the left, because all of its sides are equal.
A random convex polygon will "almost surely" fit on the left. |
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KEYWORD
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nice, stretch, right-narrow, traditional
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CONCEPT
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all (info | search)
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WORLD
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polygon_outline [smaller | same | bigger]
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AUTHOR
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Jago Collins
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