Formula Calculator Pro- Custom function Calculator app for iPhone and iPad

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Regular calculator cannot satisfy your complex calculation?
You need to repeatedly use same formula to calculate?
You want to keep all your formulas in one place and for later use?
If your answers are yes, Formula Calculator can perfectly satisfying all of your demands!

Features:
1. Including many common use formulas, you can input keyword to search them
2. Create a new formula, edit existing ones, or delete in the formula list.
3. Set default values for variables in each formula.
4. Create as many formulas as you need.
5. Simple user interface and easy to use.