Float and double in C #

During my work, I found a problem with the accuracy of the C # floating point number. The following program running results did not get my expected results:

View source Print? 01 namespace FloatTest 02 { 03      class Program 04      { 05          static void Main( string [] args) 06          { 07              double a = 0.0001; 08              float b = 0.1F; 09   10              int c = ( int )((a * 1000) / b); 11   12              Console.WriteLine( "c = {0}" , c); 13   14              Console.ReadLine(); 15          } 16      } 17 }

The expected result is 1, and the result returned by the result program is c = 0.

 

This reminds me of the possibility that the floating point uses the IEEE754 Representation Method and B is converted to a double in the operation, which may be caused by a problem in the conversion algorithm. To prove this problem, I did the following experiment:

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