HP 10413 Datasheet download pdf (Page 53)

Try turning the check on and off for function F1(X). Remember, the

highlight has to be on the function before the check can be changed. Make

sure it’s checked when you have finished.

The

NUM

view

If you now press the NUM key, you will see the

screen on the right. It shows the calculated

function values for F1(X), starting at zero and

increasing in steps of 0.1

Make sure the highlight is in the X column, and then press 4 and ENTER.

You will find that the numbers will now start at 4 instead of zero. It is also

possible to change the step size via the

key, which can be convenient

at times, particularly for trig functions. The simplest way to set the start value

and increment is in the NUM SETUP view. This will be covered in detail later

(see page 77).

The

PLOT

view

Now try pressing the PLOT key. The graph

you’ll see will not be a terribly useful one (see

right) because the axes will not be set up

correctly. We’ll look next at how to do this.

One of the easiest ways to set up the axes properly for a function whose

shape is not known in advance is to let the calculator suggest a suitable

scale. There are a number of ways of doing this. See page 86 for a

discussion of ways of finding ‘nice’ axes.

One method of finding a viable scale is to use the Auto Scale option in the

VIEWS menu (below). More information on the VIEWS menu can be found

on page 92. Another method is to use the NUM view to investigate the range

of values that will be required for the function.

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HP 10413 Datasheet Page 53