CS135 Lecture Notes - Lecture 3: Semicolon
7 Oct 2014
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Readings: htdp, sections 1-5, survival, style, and submissions guide. Every program is an act of communication: between you and the computer, between you and yourself in future (can"t remember/picture all code in head, between you and others (how others interact with program, inputs/outputs, etc. ) Human-only comments in racket programs: from a semicolon (;) to the end of the line. Programs should be: compatible, composable, correct, durable, efficient, extensible, flexible, maintainable, portable, readable, reliable, reusable, scalable, usable, and useful. The design recipe: use for every function in cs 135, development process that leaves written explanation of code production. Five components: purpose describe what the function is to compute, contract types of arguments function consumes and types of value it produces. Tuesday, september 16, 2014: examples illustrating typical use of the function, definition racket definition (header and body) of the function, tests representative set of inputs and outputs.
