Argumento de uma função (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Argumento de uma função" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

513^th place

605^th place

wolfram.com

mathworld.wolfram.com

Why is the 'argument' of a function named as such? publicado na "Stack Exchange" (2015)
Weisstein, Eric W. "Argument." da "MathWorld--A Wolfram Web Resource"