Calculator!! has the following additional functionality compared with most available calculators:
- Shows the expression as you enter and keeps a history of your calculations (Swipe up on the screen to access the history.)
- Capability of performing fraction manipulations and converting between different formats (proper, improper, and mixed fractions) and seamless integration of fraction, integer, and decimal manipulations.
- Capability of inputting degrees, minutes, and seconds for angles and converting between degrees-minutes-seconds format and decimal format.
- Capability of calculating permutation, combination, Least Common Multiple (LCM), and Greatest Common Divisor (GCD).
- Quadratic and system of two linear equations solver
- Rectangular to polar and polar to rectangular coordinate conversion (extremely useful for phasor calculations for electrical engineers)
- Throws a set of dice (choice of 1 die to 4 dice)
- Backspace to delete last digit entered.
- Tip Calculator
- Geometry Calculator
- The left pane scrolls to reveal more functionality without a need to switch modes. The digits and most common operations are always visible and the less common operations can be revealed by scrolling the left half of the screen.
- Sinusoidal functions can be calculated for angles in units of degrees, radians, or gradians.
- Showing the content of memory on MR button, as long as it fits.
Calculator!! is an ongoing project and we are working on more features and functions to be added to every update of the app.
You are going to love the simplicity of the user interface and you will get used to the extra functionality added to this product.
Please do not hesitate to contact us for any questions, comments, to report any bugs, or to suggest additional functions you would like to see in the upcoming updates.
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What's New in Calculator!!
2.38
July 17, 2022
We added the capability to copy/paste since it was a popular demand from our beloved users.
I’m glad that the developers listened and added “history “ to the app. It’s so much useful now. Thank you!!
Response from developer
We have updated the app to address your feedback. Now history of calculations persists through sessions of the app. You can always go back in your calculations to look up something. You can also delete each row of the calculations or delete all calculations that are older than a certain calculation in the history. While we were at it we added a Tip Calculator in the portrait mode. Simply enter the check amount and tap on Tip. Also there is support for Dark Mode if you are using iOS 13.