Functions of Several Variables

$\blacktriangleright$ To define a function of several variables

1.
Write an equation such as f (x, y, z) = ax + y2 + 2z or g(x, y) = 2x + sin 3xy.

2.
Leave the insertion point in the equation.

3.
Click the New Definition button on the Compute toolbar, or from the Define submenu, choose New Definition.

As in the case of functions of one variable, Scientific Notebook always operates on expressions obtained by evaluating the function at a point.