#python #sicp
Indeed, as far as sum_squares is concerned, square is not a particular function body, but rather an abstraction of a
function, a so-called functional abstraction.
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1.3 Defining New Functions defines between its input arguments and its output values.
We can write sum_squares without concerning ourselves with how to square
a number. The details of how the square is computed can be suppressed, to be
considered at a later time. <span>Indeed, as far as sum_squares is concerned,
square is not a particular function body, but rather an abstraction of a
function, a so-called functional abstraction. At this level of abstraction, any
function that computes the square is equally good.
Thus, considering only the values they return, the following two functions for
squaring a number s Summary
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