To understand each math function, we apply the
help()
function, such as help(round)
, as shown in the following example:
>>>help(round) Help on built-in function round in module builtins: round(...) round(number[, ndigits]) -> number Round a number to a given precision in decimal digits (default 0 digits).This returns an int when called with one argument, otherwise the same type as the number. ndigits may be negative.
To find out all built-in functions, we perform the following two-step approach. First, we issue dir()
to find the default name that contains all default functions. When typing its name, be aware that there are two underscores before and another two underscores after the letters of builtins
, that is, __builtins__
:
>>>dir() ['__builtins__', '__doc__', '__loader__', '__name__', '__package__', 'x']
Then, we type dir(__builtins__)
. The first and last couple...