Comments on: How can you tell whether your calculator follows the standard order of operations?

By: Marek Kyncl

Marek Kyncl — Wed, 24 Mar 2010 07:03:58 +0000

Hello cmbeke,

that the last zero(s) after a decimal point disappear(s), when you continue your calculation is not a mistake – it’s intentional. It to tells you, that those zeros are not needed: 4.60 or 4.600 or 4.6000 are all exactly the same as 4.6.

For a future version of the calculator I am planning a feature which will let you set the number of decimal places under options.

By: cmbeke

cmbeke — Wed, 24 Mar 2010 02:34:43 +0000

hi, when i did 4.60*27 it took off the zero in 4.60 please fix it!
Thanks,
cmbeke

By: Ernest D. Scheffey

Ernest D. Scheffey — Sat, 04 Apr 2009 08:48:43 +0000

Thank you.
Well done – [****]^

By: Marek Kyncl

Marek Kyncl — Sat, 14 Mar 2009 13:40:59 +0000

Hello Alison,

I’m supposing you meant ( 0.00042 x 10^-17 )( 568,425 x 10^5 ), where the ^ sign means “to the power of”. If that is correct, then the solution would be 2.387385 x 10^-13, which I get on all the calculators that I have tried, including the one on this site. If I misinterpreted your problem then please let me know. If you use an email program and set the font to “Courier” or “Courier New” it might be easier for you to depict mathematical problems. My email address is marek [at] calculator-tab [dot] com.

By: Alison

Alison — Fri, 13 Mar 2009 21:56:27 +0000

It does not work…

By: Alison

Alison — Fri, 13 Mar 2009 21:56:01 +0000

sorry. the problem was supposed to be:
-17 5
( 0.00042 x 10 )( 568,425 x 10 )

Sorry for all the trouble I’m causing.

By: Alison

Alison — Fri, 13 Mar 2009 21:32:24 +0000

This is one of the problems I was having trouble with:

-17 5
( 0.00042 x 10 )( 568,425 x 10 )

Things seemed to go wrong when I used a negative exponent. Again, I might have been using the calculator incorrectly. Thanks for your help.

By: Marek Kyncl

Marek Kyncl — Fri, 13 Mar 2009 17:16:08 +0000

Hello Alison,

thanks for letting me know, that the calculator might not be working properly. I am not aware of a problem with the scientific notation or exponent function, but if you send me an example of an equation, where the calculator fails, I will look into it.

By: Alison

Alison — Fri, 13 Mar 2009 16:55:55 +0000

Hello, I am taking Algebra 2 and I have been using this calculator and have always had positive results. However, today I am doing scientific notation and I could not seem to get the right answers although I was following the directions of my Algebra book and also the instructions on this site. It seems that the exponent key might not be working properly, because I found another calculator to use that gave me the right answers. I just wanted to let you know in case the exponent key is not working right. It could be that I wasn’t using it correctly, but then again the other scientific calculator seemed to work. Thank you.