[理工] 98年交大資聯離散1-1 mapping..
1.6(4 points)
Let a, and b be two symbols. The notation a^3 denotes the atring aaa,
that is, a string of three a's. Similarly, the notation a^4 denotes the
string of four a's. Similarly, the notation a^k denotes the string of k a's.
Find a 1-1 mapping from N to { (a^k)(b^jk) | j, k 屬於 N}
請問這題要怎麼解阿..
我當下還想說好像要寫出個"S->AB"之類的東西..
可是我同學問了我"1-1 mapping"是什麼..
我才發現我好像忽略掉他了><
請問這題問1-1 mapping是要寫什麼答案阿QQ
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