在C＃中划分2个浮点数时增加精度

Question

I am trying to write a piece of code in C# which divides 2 floats and returns the results upto 6 decimal places. Here is the code that i have written. Problem is I get the results as 0.6 instead of 0.60000. Please advice a possible a solution to this.

Here is the code :

float probability=((float)counter/(float)(max+N));
probability = probability * (float)1.000000;                
Console.WriteLine("Probability:{0:N6}",probability.ToString());

Answer 1

You should not use ToString to specify the values to use for the string format.

After calling ToString , the second argument to WriteLine becomes the string "0.6" . The format here is ignored because the runtime is only just evaluating the expression probability.ToString() . To fix this, remove .ToString because you want the second argument to be treated as a float :

Console.WriteLine("Probability:{0:N6}",probability);

Answer 2

I think what you want is Console.WriteLine("Probability: {0:0.000000}", probability) . See https://docs.microsoft.com/en-us/dotnet/standard/base-types/custom-numeric-format-strings for details.