class Program
{
static void Main(string[] args)
{
var @decimal = 42;
var binaryVal = ToBinary(@decimal, 2);
var binary = "101010";
var decimalVal = ToDecimal(binary, 2);
Console.WriteLine("Binary value of decimal {0} is '{1}'", @decimal, binaryVal);
Console.WriteLine("Decimal value of binary '{0}' is {1}", binary, decimalVal);
Console.WriteLine();
@decimal = 6;
binaryVal = ToBinary(@decimal, 3);
binary = "20";
decimalVal = ToDecimal(binary, 3);
Console.WriteLine("Base3 value of decimal {0} is '{1}'", @decimal, binaryVal);
Console.WriteLine("Decimal value of base3 '{0}' is {1}", binary, decimalVal);
Console.WriteLine();
@decimal = 47;
binaryVal = ToBinary(@decimal, 4);
binary = "233";
decimalVal = ToDecimal(binary, 4);
Console.WriteLine("Base4 value of decimal {0} is '{1}'", @decimal, binaryVal);
Console.WriteLine("Decimal value of base4 '{0}' is {1}", binary, decimalVal);
Console.WriteLine();
@decimal = 99;
binaryVal = ToBinary(@decimal, 5);
binary = "344";
decimalVal = ToDecimal(binary, 5);
Console.WriteLine("Base5 value of decimal {0} is '{1}'", @decimal, binaryVal);
Console.WriteLine("Decimal value of base5 '{0}' is {1}", binary, decimalVal);
Console.WriteLine();
Console.WriteLine("And so forth.. excluding after base 10 (decimal) though :)");
Console.WriteLine();
@decimal = 16;
binaryVal = ToBinary(@decimal, 11);
binary = "b";
decimalVal = ToDecimal(binary, 11);
Console.WriteLine("Hexidecimal value of decimal {0} is '{1}'", @decimal, binaryVal);
Console.WriteLine("Decimal value of Hexidecimal '{0}' is {1}", binary, decimalVal);
Console.WriteLine();
Console.WriteLine("Uh oh.. this aint right :( ... but let's cheat :P");
Console.WriteLine();
@decimal = 11;
binaryVal = Convert.ToString(@decimal, 16);
binary = "b";
decimalVal = Convert.ToInt32(binary, 16);
Console.WriteLine("Hexidecimal value of decimal {0} is '{1}'", @decimal, binaryVal);
Console.WriteLine("Decimal value of Hexidecimal '{0}' is {1}", binary, decimalVal);
Console.ReadLine();
}
static string ToBinary(decimal number, int @base)
{
var round = 0;
var reverseBinary = string.Empty;
while (number > 0)
{
var remainder = number % @base;
reverseBinary += remainder;
round = (int)(number / @base);
number = round;
}
var binaryArray = reverseBinary.ToCharArray();
Array.Reverse(binaryArray);
var binary = new string(binaryArray);
return binary;
}
static double ToDecimal(string binary, int @base)
{
var val = 0d;
if (!binary.All(char.IsNumber))
return 0d;
for (int i = 0; i < binary.Length; i++)
{
var @char = Convert.ToDouble(binary[i].ToString());
var pow = (binary.Length - 1) - i;
val += Math.Pow(@base, pow) * @char;
}
return val;
}
}
Источники обучения:
Все, что вам нужно знать о двоичном
включая алгоритм преобразования десятичного числа в двоичное