Today I started researching the "Four colours theorem" and to do so I need data, regions for example. I tried using the following line:
But the result:
CountryData::dlfail: Internet download of data for CountryData failed. Use Help > Internet Connectivity... to test or reconfigure internet connectivity. >>
I tried to do this next:
For those who don't understand (because the screen language is Russian) the default source does not respond. How I can change the default source? Mathematica version – 18.104.22.168, OS – Windows 7.