HP 10413 Datasheet download pdf (Page 244)

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We could use the arrow keys to scroll down to the Polynomial functions but it

is far faster to simply press the key labeled with the letter ‘P’ (on the ‘5’ key).

It is not necessary to press the ALPHA key first. You will notice in the screen

on the right that there are two groups of functions beginning with a ‘P’ - being

Polynomial and Probability. To reach Probability press the ‘P’ key again.

Once you are in the correct group, press the right arrow key to move into the

list of functions belonging to that group. Once again you have a choice of

using the arrow keys or the key corresponding to the first letter of the

function. Pressing the right arrow key again

will move down the functions a ‘page’ at a

time. In this case, since every single function

in the Polynomial group begins with a ‘P’, and

there is only one ‘page’ of them, there is no

difference between the methods. Move the

highlight down to POLYFORM and then press

the ENTER key.

Your HOME view should now look like this. You

will notice that the first bracket has already

been inserted for you.

Complete the expression…

POLYFORM((X+2)^5-(3X-1)^2,X) (using X

key to get ^)

and then press the ENTER key.

You will find that the expression

(2)(31)xx

−− has been expanded on the

following line to X^5+10*X^4+40*X^3+71*...etc

There are two ways of seeing the complete

result.

You can move the highlight up to that line and it. You could then move

back and forth through the line using the arrow keys to see it in full.

A better method is to press the screen key labeled . This gives (after a

pause) the result shown above. The portion off the edge of the screen can

be seen by scrolling right using the arrow key. More details will be given of

this POLYFORM function in the Polynomial group when we get to it.

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HP 10413 Datasheet Page 244