HP 39gs_40gs_Mastering The Graphing Calculator_English_E_F2224-90010

Plot-Detail

Choosing Plot-Detail from the menu splits the screen into two halves and

re-plots the graph in each half. The right hand side can now be used to

without affecting the left screen. The idea is that you on

the left screen and the result appears on the right screen.

For example a Box zoom shows the result on the right allowing easy

comparison of ‘before’ and ‘after’ views.

The left hand graph is always the active one, with results of actions

shown on the right. We can now use the left graph again to zoom in on

another section of interest, or alternatively, press the key under the

label. This switches the right hand graph onto the left screen so that you

can perform progressive zooms.

Using

or the menu you can then find

or examine points of interest. Alternatively you can

zoom in again using another Box zoom.

Any of the normal

tools such as Signed Area or Extremum can

be used in this split screen.

available except .

ll the normal function tools are