再思即可 - 博客园

2024年11月12日

摘要：

Exercise2.75 Implement the constructor make-from-mag-ang in message-passing style. This procedure should be an alogous to the make-from-real-imag proc 阅读全文

posted @ 2024-11-12 19:52 再思即可阅读(3) 评论(0) 推荐(0) 编辑

2024年11月11日

sicp每日一题[2.74]

摘要：

Exercise 2.74 Insatiable Enterprises, Inc., is a highly decentralized conglomerate company consisting of a large number of independent divisions locat 阅读全文

posted @ 2024-11-11 19:43 再思即可阅读(7) 评论(0) 推荐(0) 编辑

2024年11月9日

sicp每日一题[2.73]

摘要：

最近状态不太好，再加上2.73前面的内容有点多，学的有点吃力，所以昨天就没做。。 Exercise 2.73 Section 2.3.2 described a program that performs symbolic differentiation: (define (deriv exp va 阅读全文

posted @ 2024-11-09 22:20 再思即可阅读(6) 评论(0) 推荐(0) 编辑

2024年11月7日

sicp每日一题[2.72]

摘要：

Exercise 2.72 Consider the encoding procedure that you designed in Exercise 2.68. What is the order of growth in the number of steps needed to encode 阅读全文

posted @ 2024-11-07 18:43 再思即可阅读(1) 评论(0) 推荐(0) 编辑

2024年11月6日

sicp每日一题[2.71]

摘要：

Exercise 2.71 Suppose we have a Huffman tree for an alphabet of n symbols, and that the relative frequencies of the symbols are 1,2,4, . . . ,2n 1. Sk 阅读全文

posted @ 2024-11-06 22:03 再思即可阅读(6) 评论(0) 推荐(0) 编辑

2024年11月5日

sicp每日一题[2.70]

摘要：

Exercise 2.70 The following eight-symbol alphabet with associated relative frequencies was designed to efficiently encode the lyrics of 1950s rock son 阅读全文

posted @ 2024-11-05 20:37 再思即可阅读(1) 评论(0) 推荐(0) 编辑

2024年11月4日

sicp每日一题[2.69]

摘要：

Exercise 2.69 The following procedure takes as its argument a list of symbol-frequency pairs (where no symbol appears in more than one pair) and gener 阅读全文

posted @ 2024-11-04 19:55 再思即可阅读(3) 评论(0) 推荐(0) 编辑

2024年11月3日

sicp每日一题[2.67-2.68]

摘要：

Exercise 2.67 Define an encoding tree and a sample message: (define (make-leaf-set pairs) (if (null? pairs) '() (let ((pair (car pairs))) (adjoin-set 阅读全文

posted @ 2024-11-03 08:59 再思即可阅读(6) 评论(0) 推荐(0) 编辑

2024年11月2日

sicp每日一题[2.66]

摘要：

Exercise 2.66 Implement the lookup procedure for the case where the set of records is structured as a binary tree, ordered by the numerical values of 阅读全文

posted @ 2024-11-02 11:31 再思即可阅读(4) 评论(0) 推荐(0) 编辑

2024年11月1日

sicp每日一题[2.65]

摘要：

Exercise 2.65 Use the results of Exercise 2.63 and Exercise 2.64 to give (n) implementations of union-set and intersection-set for sets implemented as 阅读全文

posted @ 2024-11-01 08:42 再思即可阅读(4) 评论(0) 推荐(0) 编辑