Imperative programming
- new example: given a list, square every even element, then sum them
def square_and_sum(lst):
tally = 0
for i in range(len(lst)):
if lst[i] % 2 == 0:
tally = tally + lst[i]**2
return tally
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sure, this is nicer than the nightmare of 1950 but we still have to do all the coding
-
this was
-
structured: using loops rather than
goto(try writing this in ancient Fortran™) -
imperative: we described every step for the computer to do
-
dynamically typed (see later)
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