April 2014
Beginner to intermediate
830 pages
15h 21m
Chinese
Content preview from Mathematica 錦囊妙計
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第四章
如果兩變數均有關聯值（bound），則以其執行比對
如果一個變數有關聯值，則將其值與另一變數關聯，並再次比對
如果兩變數均無關聯值，則將第二個變數作為第一個變數的關聯值
將表示式作為變數關聯值的關聯值
將表示式設定為變數關聯值
原子相同則輸出匹配成功
複合表示式匹配成功的條件：標頭相同、長度相同及對應元素相同
若非以上情況，則匹配失敗
[Page-179]
以各種用法測試
unify
函數。
ch04.indd 178 2014/4/2 上午 05:39:20
4.13 Unification 模式匹配
|
179
以下對既有關聯值進行比對，因此 Unification 失敗了。[Page-180]
討論說明
延伸資訊
相較於本文，Maeder 所著的《Mathematica Programmer II》書中更深入實作了 Prolog 的
許多功能。你也可以使用訣竅 3.10 所討論的技巧，以一般模式語法重新設計 Unification
變數。
ch04.indd 179 2014/4/2 上午 05:39:21
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