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From Encyclopedia of Mathematics
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The argument of a function is the variable (also called the independent variable) on which the value of the function depends.

The argument of a complex number , represented in the plane by the point with coordinates and , is the angle of the radius vector of this point with the -axis.

How to Cite This Entry:
Argument. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Argument&oldid=33396