C. IntegralThe TI-89 will graph the integral of a function. You may wish to see the graph of an integral in a calculus application. However, the values of the integral may be quite large and you will need to use care in selecting a window. Also, the graphs may be generated slowly. You will need to use the nInt(x) function.

Example: Graph .

Press to

access the Y=Editor.

Press and scroll

to A:Calculus.Press and to scroll

to B:nInt(. and press

ENTER.

Notice the format of the

function. The graph for

this will graph from x=-2

to the value of xmax. Press to

draw the graph.