Scheme代写代考

Assignment 3: An Expression Evaluator and Simplifier Your task for this assignment is to implement a Scheme expression evaluator and simplifier. The assignment is divided into parts that ask you to put your code into these files: Part 1: env1.scm, env2.scm Part 2: myeval.scm Part 3: simplify.scm When it is time to submit your work, please put all these .scm files […]

Homework #3 100 points Three Scheme files are provided for you: hw3.scm, sales.scm, and salesBig.scm. Complete the functions in hw3.scm. Use the function names exactly as they appear in the file. Read the comments in hw3.scm for a description of what these functions should do. Include a function definition for each function, even if you

CS 450: The Structure of Higher Level Languages Carl Offner Fall 2017 office: 130 email: offner “at” cs.umb.edu Aside from this web page, and pages it points to, I will be providing other course material as files (not web pages!) under ~offner/cs450. Feel free to poke around there. Anything there is for you to take.

In this assignment, your task is to learn basic Scheme programming. We’ll do this by implementing a number of basic Scheme functions. Your solutions are restricted to use only the following: define, lambda, let, let*, cond/else, if null?, car, cdr, cons, list?, list not, and, or, #t, #f arithmetic operators like +, /, mod, <, >=, … data types: numbers, strings, lists Any functions you define in this assignment must use only these elementary forms. You can (should!)

CS 450 Homework 6  The metacircular evaluator Carl Offner Fall 2017Due Tuesday, October 31, 5:00 PM This assignment consists of reading, understanding, and modifying the metacircular evaluator in Chapter 4 of Abelson and Sussman. The assignment has lots of pieces. Be sure you start early. Moreover, some of the things you need to do are