for the learning of mathematics |
| Younggi Choi - Vol. 25 Num. 3 (2005) | ||
| Equality involved in 0.999... and (-8)^1/3 | 13-15 | |
| Younggi Choi - Vol. 35 Num. 1 (2015) | ||
| The scandals of geometry and school mathematics: 28 the parallel postulate and the equality 0.99...= 1 | 28-30 | |
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