On the surface, the default iOS Calculator app seems very simple. But, there are a few tricks up the Calculator app's sleeve.

Unlock the full potential of your iPad calculator app with our beginner's guide on how to use math notes on iPad. See how it can automatically calculate math equations and show results as you write.

A blood pressure calculator can help you better understand your blood pressure readings. Here's how to get started.

As a taxpayer, it is recommended to use an income tax (I-T) calculator to ascertain your tax liability. However, before you use income tax calculator, these are the key steps that you need to ...