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In Ruby, how can I do:
number_total = records / per_page
where per_page = 100, and records = 1050, and then round up so there are no decimals? So, instead of 10.5 it equals 11?
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Python's Built-in round() Function Python has a built-in round() function that takes two numeric arguments, n and ndigits , and returns the number n rounded to ndigits . The ndigits argument defaults to zero, so leaving it out results in a number rounded to an integer.
Round() Round() is a built-in function available with python. It will return you a float number that will be rounded to the decimal places which are given as input. If the decimal places to be rounded are not specified, it is considered as 0, and it will round to the nearest integer.
Python's round() function requires two arguments. First is the number to be rounded. Second argument decides the number of decimal places to which it is rounded. To round the number to 2 decimals, give second argument as 2.
INT is similar to the TRUNC function because they both can return the integer part of a number. However, TRUNC simply truncates a number, while INT actually rounds a number down to an integer. With positive numbers, and when TRUNC is using the default of 0 for num_digits, both functions return the same results.
Edited following a comment
number_total = (records / per_page.to_f).ceil
@lulala Another root of all evil: cherry-picking results.
Run your benchmark multiple times. I get the following:
user system total real
0.120000 0.000000 0.120000 ( 0.119281)
0.120000 0.000000 0.120000 ( 0.123431)
Which is a tie.
user system total real
0.110000 0.000000 0.110000 ( 0.118602)
0.130000 0.000000 0.130000 ( 0.127195)
Which suggests that float_op is faster.
user system total real
0.150000 0.000000 0.150000 ( 0.151104)
0.120000 0.000000 0.120000 ( 0.123836)
Which suggests that integer_op us faster.
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