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Structure and Interpretation of Computer Programs Notes

1.1.1 Expressions

Simple

486 ;486  

Combining Expressions - Combinations

2 numbers

; the * is the operator and the numbers are the operands - in this case 25 * 25
(* 25 25) ;625

multiple numbers

(+ 21 35 12 7) ;75

(* 25 4 12) ;1200

1.1.2 Naming and the Environment

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