Double overflow
.net, c#
Solution
This is rounding / precision; from the perspective of a number that is 309 digits long (before the decimal place), `100000` is essentially zero. You might as well add `0`.
If you try `double.MaxValue * 2` - i.e. something that will actually be noticeable to it, then it will show as positive infinity.
Problem
I have some problems with double type. At MSDN i read about double max value following: The result of an operation that exceeds Double.MaxValue is Double.PositiveInfinity. I wrote some tests: ``` Console.WriteLine(double.MaxValue + 100000 - double.MaxValue); Console.WriteLine(double.MaxValue); Console.WriteLine(double.MaxValue + 100000); Console.WriteLine(double.IsPositiveInfinity(double.MaxValue + 100000)); ``` And saw this result: ``` 0 1,79769313486232E+308 1,79769313486232E+308 False ``` I don't understand, double.MaxValue + 100000 isn't Positive infinity, but equal to double MaxValue. I think it should be PositiveInfinity, according to msdn documentation. I tested it in VS2012, .NET 4.5