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Hi Folks, Question #1: Which of the following is easiest to read and quickly grasp what it’s saying? (a) 2 + 3 (b) two plus three (c) <expression> Answer #1: Clearly (a) is easiest to read and quickly grasp what it’s saying. Question #2: Of the above forms, which is quickest, easiest, and cheapest to implement an evaluator? Answer #2: Clearly (c) is quickest, easiest, and cheapest to implement an evaluator.
Question #3: Suppose an evaluator is implemented for each of the above forms. Which evaluator runs fastest? Answer #3: Likely they all run at roughly the same speed. Question #4: Which of the following is more expensive and whose expense rises yearly? (d) Human (e) Machine Answer #4: Clearly (d) is more expensive and whose expense rises yearly. Question #5: How often would we need to incur the expense of implementing an evaluator? Answer #5: Implementing an evaluator is a one-time investment.
Question #6: How often would we need to incur the expense of reading and understanding an expression? Answer #6: The expense of reading and understanding is large and grows larger over time. Conclusion: Write terse, easy-to-read, easy-to-grasp expressions. Do you agree? /Roger |