Re: Standard number format and number of digits

In article <46A5DA10.1040809@xxxxxxx>,
Vasilis Vlachoudis <Vasilis.Vlachoudis@xxxxxxx> wrote:

Virgil wrote:
In article <46a597f3$0$25919$ba4acef3@xxxxxxxxxxxxxx>,
Vasilis Vlachoudis <Vasilis.Vlachoudis@xxxxxxx> wrote:

Hello all,

I was wondering if there is a way to set the number of digits that are
displayed and/or used by the calculator (HP49G+) in the standard number
format?

I prefer using the standard format, I found it more readable than the
others, apart that it clutters the display with long numbers. Is it
possible to somehow ask the calculator to display up to a certain number
of digits?

Vasilis

Press the MODE key move down to "Number Format" then press the CHOOSE
key. If you choose anything but the Standard setting, you may also enter
a number of digits from 0 to 1l

There are also commands to set the display:
STD with no number or
n FIX
n ENG
n SCI
with 0 <= n <= 11

Probably I was not clear. My point was NOT to use the FIX, ENG, SCI
formats but the Standard format and limit the max number of digits to
less than 12. The formats FIX, ENG, SCI are nice for tables, finance
etc., but completely ugly in some other cases
Example: the expression x^2+sin(1)*x+1 will appear in SCI-4 will
appear x^2.0000E0+8.4147E-1*x+1.0000E0 with unnecessary digits (zeros +
exponents in the limited and precious screen space.
While the STD format will gives the most compact representation for the
1 and 2 but not for the non-rational numbers
x^2.+0.841470984807897*x+1.
I would like to get something like this STD-4
x^2.+0.8415*x+1.

Vasilis


As far as I know, there is no way using standard commands to get
different numbers in an algebraic expression or equation to display in
with different format settings.

But if you enter it in exact mode as 'x^2+sin(1.)*x+1' then in the
equationwriter select just 'sin(1.)' and evaluate it, you can get what
you want. But it is not a very useful solution.

You can use the round off command, RND, to eliminate digits you do not
want to display in numbers, but not in algebraics.

To round a number off to n decimals, 0 <= n <= 11 use n RND.

To round it off to n significant digits, 1 <= n <= 11, use -n RND.
.

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