About this app
This app provides two kind of calculations. One is the calculation of the binomial coefficient. The other one is the calculation of n factorial. You have to enter n and/or k to calculate the result. Only natural numbers are supported. The solution is shown step by step. All calculations are stored in the history. The final solution can be shared. [ Contents ] - modes for binomial coefficient and n factorial - n and/or k must be entered - results are calculated and shown in detail - the formula behind factorial and every step is shown - history function to save the input - detailed solution - only natural numbers are supported - no ads! [ Usage ] - there are fields for entering values using a special keyboard - press the check mark button at the bottom right to start the calculation - if values are missing, the relevant field is highlighted in yellow - if the values are wrong, the affected field will be highlighted in red - the entries in the history can be deleted or sorted - if you select an entry in the history, it will be automatically loaded for the calculation - the whole history can be deleted by pressing a button - solutions can be shared - n must be greater than or equal k
Latest release
What’s New
The latest release 'Least common multiple' is linked in the menu section now. Minor performance and UI fixes.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 16, 2026 · 1:14 PM Free
Screenshots
