CS 2500 Study Guide - Comprehensive Midterm Guide: Big Bang, Data Definition Language, Polskie Radio Program Iii
5 Oct 2016
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Press enter to run-- will show up in lower window on new line upper window is definitions window. Press run to run-- will show up in lower window can copy images off the web into the upper window. To add, use prefix notation in beginning student language: (+ 10 13) (* (+ 1 2) 4)-- same thing as (1+2) (4) Always use an open parenthesis before the operation so it knows the operation is going to come. addition or subtraction or division or multiplication can use as many numbers as you want. **words are considered a string** (string-append hello goodbye) **must put a space in the string to split the letters** **we are computers bc we can compute info** Change the language-- add in image library from language in the menu. To write: f(x) = x^2 + 5: define first in the definitions window (define (f x) (+ (sqr x) 5), run the function in either window (f 20)
