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
*/