# sqrt(4) -> 2 and such - Hewlett Packard

This is a discussion on sqrt(4) -> 2 and such - Hewlett Packard ; Hi, I don't know what's happened but lately my HP 50g doesn't simplify expressions with square roots such as: sqrt(4) -> 2 sqrt(8) -> 2*sqrt(2) 1/sqrt(2) -> sqrt(2)/2 etc. I guess some flag may have changed accidentally but I can't ...

# Thread: sqrt(4) -> 2 and such

1. ## sqrt(4) -> 2 and such

Hi,
I don't know what's happened but lately my HP 50g doesn't simplify
expressions with square roots such as:
sqrt(4) -> 2
sqrt(8) -> 2*sqrt(2)
1/sqrt(2) -> sqrt(2)/2
etc.
I guess some flag may have changed accidentally but I can't find out
which one it is.

2. ## Re: sqrt(4) -> 2 and such

On Wed, 26 Mar 2008 04:54:34 -0700 (PDT), squeetox@gmail.com wrote:

>Hi,
>I don't know what's happened but lately my HP 50g doesn't simplify
>expressions with square roots such as:
>sqrt(4) -> 2
>sqrt(8) -> 2*sqrt(2)
>1/sqrt(2) -> sqrt(2)/2
>etc.
>I guess some flag may have changed accidentally but I can't find out
>which one it is.

[RightShift]+[Enter] to toggle between exact (=) and
approximate (~) mode.

Damir

3. ## Re: sqrt(4) -> 2 and such

But sqrt(4) is exactly 2, why don't I get that result while in exact
mode? What about the others, because I don't want a decimal approx.

4. ## Re: sqrt(4) -> 2 and such

> But sqrt(4) is exactly 2, why don't I get that result while in exact
> mode? What about the others, because I don't want a decimal approx.

Run the command CASCFG. That resets back to defaults.

TW