Delwedd:Multiplication as scaling integers.gif
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Multiplication_as_scaling_integers.gif (400 × 200 picsel, maint y ffeil: 26 KB, ffurf MIME: image/gif, dolennog, 43 ffrâm, 14e)
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Crynodeb
| Disgrifiad |
English: Multiplication is often taught as repeated addition. A more accurate representation is to think of it as scaling quantities. This animation illustrates this.
Notice that the blue dot in the blue segment of length 3 is placed at position 1, and the blue segment is scaled so that this dot is placed at the end of the red segment, of length 2. For multiplication by any X, the blue dot will always start at 1 and end at X. This works even for X smaller than 1. |
| Dyddiad | 05-09-2010 |
| Ffynhonnell | Gwaith fy hun |
| Awdur | Lucas Vieira |
Trwyddedu
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Yr wyf fi, deiliad hawlfraint y gwaith hwn, yn ei ryddhau i'r parth cyhoeddus, a hynny'n fyd-eang. Hwyrach nad yw hyn yn bosib yn ôl cyfraith rhai gwledydd; os felly: Rwyn rhoi i unrhywun yr hawl i ddefnyddio'r gwaith hwn at unrhyw ddiben, heb unrhyw amodau, oddieithr unrhyw amodau gofynnol yn ôl y gyfraith. |
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| Dyddiad/Amser | Bawdlun | Hyd a lled | Defnyddiwr | Sylw | |
|---|---|---|---|---|---|
| cyfredol | 13:15, 2 Rhagfyr 2012 | | 400 × 200 (26 KB) | wikimediacommons>LucasVB | New version, larger dot and some guide lines to show the scaling better. |
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