HP Forums
Squareroot gives strange result - Printable Version

+- HP Forums (https://www.hpmuseum.org/forum)
+-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html)
+--- Forum: HP Prime (/forum-5.html)
+--- Thread: Squareroot gives strange result (/thread-11424.html)



Squareroot gives strange result - blevita - 09-20-2018 05:18 PM

Hi

I am relatively new to the Prime (about 6 months) but all in all i love this calculator.
But sometimes i discover some unexpected behaviours.
Today i found a new one which costs me many hours to get behind.

Please take a looks at the attached picture.
It looks (for me) that there is a bug in the way the prime interprets exponents?

The first result is the correct and the expected one.
But i thought that i can save some time by using the EEX key to define the exponent of a number.
Looks like this does not work if used inside a sqrt.

If someone know more about this behaviour i would be very happy to get more informations about it.

Thank you.


RE: Squareroot gives strange result - toml_12953 - 09-20-2018 05:50 PM

(09-20-2018 05:18 PM)blevita Wrote:  Hi

I am relatively new to the Prime (about 6 months) but all in all i love this calculator.
But sometimes i discover some unexpected behaviours.
Today i found a new one which costs me many hours to get behind.

Please take a looks at the attached picture.
It looks (for me) that there is a bug in the way the prime interprets exponents?

The first result is the correct and the expected one.
But i thought that i can save some time by using the EEX key to define the exponent of a number.
Looks like this does not work if used inside a sqrt.

If someone know more about this behaviour i would be very happy to get more informations about it.

Thank you.

Do you have engineering mode selected? It looks like that to me.

Tom L


RE: Squareroot gives strange result - blevita - 09-20-2018 05:51 PM

(09-20-2018 05:50 PM)toml_12953 Wrote:  
(09-20-2018 05:18 PM)blevita Wrote:  Thank you.

Do you have engineering mode selected? It looks like that to me.

Tom L

Yes, i have enabled the engineering format.


RE: Squareroot gives strange result - toml_12953 - 09-20-2018 05:54 PM

(09-20-2018 05:51 PM)blevita Wrote:  
(09-20-2018 05:50 PM)toml_12953 Wrote:  Do you have engineering mode selected? It looks like that to me.

Tom L

Yes, i have enabled the engineering format.

Choose a different format, then, and your answer will be what you expect.


RE: Squareroot gives strange result - blevita - 09-20-2018 05:56 PM

I have changed back to standard number format.
Still the same behaviour.


RE: Squareroot gives strange result - CyberAngel - 09-20-2018 06:01 PM

(09-20-2018 05:18 PM)blevita Wrote:  Hi

I am relatively new to the Prime (about 6 months) but all in all i love this calculator.
But sometimes i discover some unexpected behaviours.
Today i found a new one which costs me many hours to get behind.

Please take a looks at the attached picture.
It looks (for me) that there is a bug in the way the prime interprets exponents?

The first result is the correct and the expected one.
But i thought that i can save some time by using the EEX key to define the exponent of a number.
Looks like this does not work if used inside a sqrt.

If someone know more about this behaviour i would be very happy to get more informations about it.

Thank you.

They are all correct.
VPN


RE: Squareroot gives strange result - blevita - 09-20-2018 06:02 PM

Ok i saw my mistake...

Im sorry for that.

1 * 10^-12 is not 10e-12
its 1e-12 obvious


Thanks.


RE: Squareroot gives strange result - CyberAngel - 09-20-2018 06:06 PM

(09-20-2018 06:02 PM)blevita Wrote:  Ok i saw my mistake...

Im sorry for that.

1 * 10^-12 is not 10e-12
its 1e-12 obvious


Thanks.

Note that I didn't give you any hint.
Just a claim.
You found the correction all by yourself.
VPN