HP 10413 Datasheet download pdf (Page 83)

Integration: The definite integral using PLOT variables

As was discussed earlier, when you find roots,

intersections, extrema or signed areas in the

PLOT view, the results are stored into variables

for later use.

For example, if we use Root to find the x

intercept of

() 2fx x=− then the result is stored

into a variable called Root, which can be

accessed anywhere else. Similar variables

called Isect, Area, and Extremum are

stored for the other tools.

You can access these names by typing them

in using the ALPHA key, or by using the VARS

key. Press VARS and you will see a list of the

HOME variables.

If you press SK2, labeled (not the

APLET button on the keyboard), then the

display changes to show the variables specific

to whatever aplet you are currently using.

Those shown right are for the Function aplet

and the group of Plot FCN variables is shown.

If you look at the screen shot you will see that the tag is currently

selected (showing as

) and this means that when you press the

name of the variable will be pasted into what ever view you were using when

you pressed the VARS key. Pressing the

screen key will cause the

value of the variable to be pasted instead. There is no effective difference in

most situations.

This can be very useful in finding areas, as you will see in the example

following.

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 330 331

No comments

HP 10413 Datasheet Page 83