By Brian Harvey

ISBN-10: 0262581485

ISBN-13: 9780262581486

ISBN-10: 0262581493

ISBN-13: 9780262581493

ISBN-10: 0262581507

ISBN-13: 9780262581509

ISBN-10: 0262581515

ISBN-13: 9780262581516

This sequence is for individuals - adults and youths - who're attracted to laptop programming simply because it really is enjoyable. the 3 volumes use the brand programming language because the motor vehicle for an exploration of computing device technological know-how from the point of view of symbolic computation and synthetic intelligence. brand is a dialect of Lisp, a language utilized in the main complex examine initiatives in computing device technology, specifically in man made intelligence. in the course of the sequence, sensible programming recommendations (including better order features and recursion) are emphasised, yet conventional sequential programming can be used while appropriate.In the second one version, the 1st volumes were rearranged in order that illustrative case reviews seem with the innovations they reveal. quantity 1 contains a new bankruptcy approximately better order capabilities, and the recursion chapters were reorganized for better readability. quantity 2 features a new educational bankruptcy approximately macros, an specific potential of Berkeley brand, and new initiatives. in the course of the sequence, the bigger software examples were rewritten for better clarity by means of extra huge use of knowledge abstraction.

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Additional info for Computer Science Logo Style 2/e: Symbolic Computing

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Instead Logo remembers what you type as part of the procedure named hello. Continue like this: > > > > ? ] end The word end isn’t the name of a procedure. * Now you can try out your new procedure: ? hello Hello This is Logo speaking. What’s new? * Why can’t we simply think of end as the name of a procedure, just as print is? This is a minor point, but one that you can use to test your understanding of what’s going on while you are defining a procedure. When you see the greater-than prompt, Logo does not evaluate the lines you type.

Someone has to carry out the recipe. In the Logo world something has to invoke a procedure. To “invoke” a procedure means to carry it out, to do what the procedure says. Procedures are invoked by instructions. The instruction you gave just now invoked the procedure named print. If an instruction is made up of names of procedures, and if the procedures invoked by the instruction are made up of more instructions, why doesn’t the computer get caught in a vicious circle, always finding more detailed procedures to invoke and never actually doing anything?

Print sentence [flat list] [[not flat] [list]] flat list [not flat] [list] In the second example the output is a list with four members: two words and two lists. Using a word as input to sentence is equivalent to using a list with that word as its single member. Sentence is the only primitive operation that treats words the same as Manipulating Words and Lists 23 single-word lists; you’ve seen from the earlier examples that first and butfirst treat the word hello and the list [hello] differently.

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Computer Science Logo Style 2/e: Symbolic Computing by Brian Harvey

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