Coba jelasin =  = 0.01010101...2 dari Sistem angka perduaan dalam bahasa melayu dong

=  = 0.10110100 10110100 ...2

The phenomenon that the binary representation of any rational is either terminating or recurring also occurs in other radix-based numeral systems.  See, for instance, the explanation in decimal.  Another similarity is the existence of alternative representations for any terminating representation, relying on the fact that 0.111111... is the sum of the geometric series 2−1 + 2−2 + 2−3 + ... which is 1.

Nombor perduaan yang tidak menyingkir atau muncul semula mewakili nombor tak nisbah.  Misalnya,

0.10100100010000100000100.... punya corak, namun corak tersebut tidak berilang dengan tetap maka ia tidak bernisbah.

1.0110101000001001111001100110011111110... ialah wakilan binari , punca kuasa 2, satu lagi nombor tak nisbah kerana ia tidak punya corak yang boleh dikenalpasti. Lihat nombor tak nisbah.

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