Hello Ryan,
are you looking for map?
map(function, sequence[, sequence, ...]) -> list
Return a list of the results of applying the function to the items
of
the argument sequence(s). If more than one sequence is given, the
function is called with an argument list consisting of the
corresponding
item of each sequence, substituting None for missing values when
not all
sequences have the same length. If the function is None, return a
list of
the items of the sequence (or a list of tuples if more than one
sequence).
And
sage: frac_list=[1.3,1.4,1.5]
sage: vector(map(round, vector(frac_list )*3 ))
(4, 4, 5)
where 3 is your common length. The outer vector is not so nice.
With best regards,
Lars Fischer
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