Essential Types C# Book

Specifier Meaning
E0, e0, E,+0, e+0, E-0, e-0 Exponent notation
using System;
using System.Text;
using System.Globalization;
class Sample
{
public static void Main()
{
Console.WriteLine("{0:0E0}", 1234);
Console.WriteLine("{0:0E+0}", 1234);
Console.WriteLine("{0:0.00E00}", 1234);
Console.WriteLine("{0:0.00e00}", 1234);
}
}
The output:
1E3
1E+3
1.23E03
1.23e03