#python #sicp
This principle -- that the meaning of a function should be independent of the
parameter names chosen by its author -- has important consequences for
programming languages. The simplest consequence is that the parameter names of a
function must remain local to the body of the function.
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1.3 Defining New Functionsmplementer's choice of names for the function's formal
parameters. Thus, the following functions should provide the same behavior:
>>> def square(x):
return mul(x, x)
>>> def square(y):
return mul(y, y)
<span>This principle -- that the meaning of a function should be independent of the
parameter names chosen by its author -- has important consequences for
programming languages. The simplest consequence is that the parameter names of a
function must remain local to the body of the function.
If the parameters were not local to the bodies of their respective functions,
then the parameter x in square could be confused with the parameter x in
sum_squares . Critically, Summary
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