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

How to Create a Program to Calculate Total Salary & Gross Pay. Creating your own business applications gives you the power to make software work any way you like.

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.