Four Colours
Education
$1.99 · Designed for iPad
Could be a map of USA or your country colored using four colors in such a way that Nebraska and Missouri (as well as any two contiguous regions or states) wouldn’t be filled with one color? It turns out that you can manage to do it with any map. And this seems to be the first statement in science proved with computer aid. You can verify this statement for variety of maps, study up geography and visit Martin Gardner country by the way.
Maps in this release:
• Commonwealth of Australia,
• Republic of Austria,
• French Republic,
• Federal Republic of Germany,
• United Mexican States,
• Republic of Poland,
• Portuguese Republic,
• Kingdom of Spain,
• Kingdom of Sweden,
• Swiss Confederation,
• United States of America,
• United Kingdom of Great Britain and Northern Ireland.
Ratings & Reviews
This update adds support for iOS 18.
The developer, Roman Koksharov, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Roman Koksharov
- Size
- 15.8 MB
- Category
- Education
- Compatibility
Requires iOS 12.0 or later.
- iPhone
Requires iOS 12.0 or later. - iPad
Requires iPadOS 12.0 or later. - iPod touch
Requires iOS 12.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Languages
- English and Russian
- Age Rating
4+
- 4+
- Copyright
- © Mathematical Etudes Foundation
