HP 39gs_40gs_Mastering The Graphing Calculator_English_E_F2224-90010

Calculator Tip

 TStep

Using



MODES l

Decreasing beyond a certain point will slow down the

graphing process without smoothing the graph any further.

0.05 is generally enough.

Since trig functions are often used in parametric equations, one

should always be careful that the angle measure chosen in

is correct. The defau t for all aplets is radian measure.

As usual, the NUM view gives a tabular view of the function. In this

case there are three columns, since

X1 and Y1 both derive from T.

As with the Function aplet, it is possible to change the starting point and

step size of the table, and also to change it into a Build Your Own type

of table (see page 70).