Slide 14.4.1 Cleaning up some details of our implementation So we have seen a first pass at building an object-oriented tem, using Scheme as the base. There are a few details that The need for self-reference

The role of abstractions In this lecture, we are going to look at a very different style of creating large systems, a style called object oriented programming. This style focuses on breaking systems up in a different manner than those we have seen before To set the stage for this, we are first going to return to the notion of

Slide 12.1.1 In the last lecture, we introduced mutation as a component of 6001s|cP our data structures We saw for example that set was a Environment mode way of changing the value associated with a variable in our system, and we saw that set-car! and set-cdr! were ways of changing the values of parts of list structure Now, several important things happened when we introduced

Chapter F11 Power notes Corporations: Organization, Capital Stock, Dividends Learning Objectives 1. Nature of a corporation 2. Stockholders'Equity 3. Sources of Paid-in Capital 4. Issuing Stock 5. Treasury Stock Transactions 6. Stock Splits 7. Accounting for dividends 8. Financial Analysis and Interpretation

Chapter F13 Power notes Bonds Payable and Investments in Bonds Learning Objectives 1. Financing Corporations 2. Characteristics of Bonds Payable 3. The Present-Value Concept and Bonds Payable 4. Accounting for Bonds Payable 5. Bond Sinking Funds 6. Bond Redemption 7 Investments in bonds 8. Corporation Balance Sheet 9. Financial Analysis and Interpretation

Chapter 16 Kinetic Theory of Gases Chapter 16 Kinetic Theory of Gases (气体动理论) 1. Molecular interpretation of Temperature Distribution of Molecular Speed Mean Free Path

Difference between Chinese and english expressions in word order 东南西北 North south east and west 衣食住行 Food clothing, shelter and transportation 水陆交通 Transportation by land and water 田径项目 Track and field events

Slide l.l.1 This first thing we need to do is discuss the focus of 6.001 What is this course all about? This seems quite obvious-- this What is the focus of 6.001 is a course about computer science. But we are going to claim This course is about Computer Science in a rather strange way that this is not really true

Beating the Averages Paul Graham (This article is based on a talk given at the Franz Developer in Cambridge, MA, on March 25, 2001 In the summer of 1995, my friend rt morris and i started a startup called Viaweb. Our pla to write software that would let end users build online stores. What was novel about this

In the last lecture, we began looking at the programming This lecture nguage Scheme. with the intent of learning how that anguage would provide a basis for describing procedures and Adding procedures and procedural abstractions