This first set of inputs is called the domain of the function. The underlying rendering is done using the matplotlib Python library. A useful plotter with root and intersection finding easy scrolling and exporting features - Graphs export as.
Plot a Mathematical Expression.
Then we use matplotlib to plot the graph for that function. In the case of functions of two variables that is functions whose domain consists of pairs x y the graph usually refers to the set. Functions were originally the idealization of how a varying quantity depends on another quantity. For example the position of a planet is a.