练习3-64 原文 Exercise 3.64. Write a procedure stream-limit that takes as arguments a stream and a number (the tolerance). It should examine the stream until it finds two succe...

练习3-65 原文 Exercise 3.65. Use the series ln2 = 1- 1/2 + 1/3 - 1/4 + …… to compute three sequences of approximations to the natural logarithm of 2, in the same way we did a...

练习3-57 原文 Exercise 3.57. How many additions are performed when we compute the nth Fibonacci number using the definition of fibs based on the add-streams procedure? Show tha...