What's New

- minor improvements

App Description

This app uses the pq formula for finding the zeros of a function quickly and easily. For this, only the values for pq must be entered. All calculations are stored in the history. The final solution can be shared.

[ Content ]
- the values for p and q must be entered
- calculation of the zeros of a function with the pq formula
- history function that saves input
- complete solution
- the entering of fractions is supported
- option to remove ads

[ Usage ]
- there are 2 fields for entering the values ​​using a modified keyboard
- if you have not entered enough values, the text fields are highlighted in yellow
- if you have entered invalid values, the corresponding text field is highlighted in red
- you can switch between the solution, input view and history by swiping and / or touching the buttons
- the entries in the history can be deleted or sorted manually
- if you select an entry in the history, it will be loaded automatically for the calculation
- the entire history can be deleted by pressing a key

iPhone Screenshots

(click to enlarge)

Quadratic Formula PQ screenshot 1 Quadratic Formula PQ screenshot 2 Quadratic Formula PQ screenshot 3 Quadratic Formula PQ screenshot 4

iPad Screenshots

(click to enlarge)

Quadratic Formula PQ screenshot 5 Quadratic Formula PQ screenshot 6 Quadratic Formula PQ screenshot 7

App Changes

  • October 29, 2017 Initial release
  • June 15, 2019 New version 1.1
  • July 15, 2020 New version 1.23
  • August 06, 2021 New version 1.25
  • September 16, 2023 New version 1.30