Skip to main content

Max/Min error Mathematics problem

Question

Given an equation R = PQ, whereby P and Q has a max error of 2% and 5% respectively, what is the maximum positive and maximum negative error of R?

Answer

Max:

R = 1.02P * 1.05Q = 1.071PQ
Max % = (1.071 - 1) * 100 = 7.1%

Min:

R = 0.98P * 0.95Q = 0.931PQ
Min % = (0.931 - 1) * 100 = -6.9%
Labels:

Popular Posts

How to stop FortiClient from starting automatically?

Installed FortiClient recently but the challenge in disabling the application/service from running automatically on every start-up annoyed me. Attempt to stop 'FortiClient Service Scheduler' only return 'Parameter is incorrect' error message.

An article on Technet help solve my trouble. To stop FortiClient from starting automatically, try the following:
Shut down FortiClient from the system tray.
Run net stop fortishield on command prompt.
Run msconfig.
On msconfig, switch to the Services tab. Clear the FortiClient Service Scheduler check box and click Apply.Run services.msc on command prompt to open up show all available services.Look for FortiClient Service Scheduler. Switch Startup type to Manual.Restart your computer. FortiClient should not be running automatically the next time round. Hope it helps.
Read more

Ho Ching named 5th most powerful and is mistaken as first lady by Forbes

Forbes named Singapore Prime Minister wife and CEO of Temasek Holdings, Ho Ching, as the 5th most powerful woman in the world. Ho Ching is mistaken as Singapore's first lady! OMG!

I wonder how can Forbes makes such a blunder. For a complete list, refer to here.
Read more

Installing Oracle Complaining Missing dr0ulib.sql.sbs

When installing Oracle Database 12c Release 1, you may encounter an error complaining missing dr0ulib.sql.sbs file. You will be stuck no matter how many times you hit on Retry button. It just won't proceed!

To resolve this issue, you will need to do this:

Abort installation.Copy all folders and files in your \winx64_12102_SE2_database_2of2\database\stage\Components\ folder to \winx64_12102_SE2_database_1of2\database\stage\Components\.Initiate installation again.
Please do not ask me why the need for this silly step. It is just how Oracle package their installation files. I would recommend them doing a ISO file instead of doing 2 ZIP files!
Read more