You can plot a defined function in two different ways. Recall that you define a function such as f (x) = x sin x by placing the insertion point in the expression and choosing New Definition from the Define submenu.
To plot a defined function f of one variable
To plot a piecewise-defined functionDM3-2.tex#Piecewise-defined function f, you may use either the function name f or the expression f (x) to create the plot. If the function is not continuous, these two choices will give different plots as illustrated in the second example below. In the first example, the function is
Plot 2D + Rectangular
f
dtbpF3.0459in2.0392in0ptpiecews3.wmf
In the following example the function is
Plot 2D + Rectangular
g
dtbpF3.0277in2.028in0ptpcwscont.wmf
Plot 2D + Rectangular
g(x)
dtbpF3.0277in2.028in0ptpcwsdisc.wmf
To add a defined function f to a 2D plot