How to construct a 64-bit floating-point value from the mantissa m, exponent e, and sign flag s in C#

1 Answer

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using System;

class Program
{
    static void Main()
    {
        // Mantissa — the core number to be scaled.
        double m = 5.1;  //  float64
        // exponent
        int e = 10; 
        // Sign flag: false means positive.
        bool s = false; 

        double value = (s ? -1.0 : 1.0) * m * Math.Pow(10, e);
        
        Console.WriteLine(value);
    }
}



/*
run:

51000000000

*/

 



answered Jul 14, 2025 by avibootz
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