摘要： ![sicp每日一题[2.8]](https://img2024.cnblogs.com/blog/3223467/202409/3223467-20240913130938894-1518510126.png)
Exercise 2.8 ＞ Using reasoning analogous to Alyssa's, describe how the difference of two intervals may be computed. Define a corresponding subtraction 阅读全文
Exercise 2.8 ＞ Using reasoning analogous to Alyssa's, describe how the difference of two intervals may be computed. Define a corresponding subtraction 阅读全文
摘要： ![sicp每日一题[2.7]](https://img2024.cnblogs.com/blog/3223467/202409/3223467-20240913130625392-1007717701.png)
2.7 Alyssa’s program is incomplete because she has not specified the implementation of the interval abstraction. Here is a definition of the interval 阅读全文
2.7 Alyssa’s program is incomplete because she has not specified the implementation of the interval abstraction. Here is a definition of the interval 阅读全文