/// <summary>
/// Performs the subtraction and prints a detailed solution.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="stepByStep">Indicates whether the operation should be performed in step-by-step mode controlled by user.</param>
public static void Subtraction(double x, double y, bool stepByStep)
{
// Make the numbers whole.
int degree = NumberWork.GetMostRoundingDegree(x, y);
long xArg = (long)(x * NumberWork.Pow(10, degree));
long yArg = (long)(y * NumberWork.Pow(10, degree));
int maxLength = NumberWork.GetMaxLength(xArg, yArg);
if (NumberWork.NumLength(xArg) < NumberWork.NumLength(yArg))
{
Swap(ref xArg, ref yArg);
}
Console.Write(String.Join("", Enumerable.Repeat(' ', maxLength - NumberWork.NumLength(xArg))));
Console.WriteLine($" {xArg}");
Console.Write(String.Join("", Enumerable.Repeat(' ', maxLength - NumberWork.NumLength(yArg))));
Console.WriteLine($" {yArg}");
Console.WriteLine(" " + String.Join("", Enumerable.Repeat("-", maxLength)));
long[] yComps = NumberWork.GetNumberComponents(yArg);
Console.Write(String.Join("", Enumerable.Repeat(' ', 3 + maxLength - NumberWork.NumLength(xArg))));
Console.WriteLine(xArg);
// Subtract each digit (component) from x and write interim results.
foreach (var comp in yComps)
{
if (stepByStep)
{
Control.WaitForUserKey();
}
Console.Write(String.Join("", Enumerable.Repeat(' ', 3 + maxLength - NumberWork.NumLength(comp))));
Console.WriteLine(comp);
Console.WriteLine(" " + String.Join("", Enumerable.Repeat("-", maxLength)));
Console.Write(String.Join("", Enumerable.Repeat(' ', 3 + maxLength - NumberWork.NumLength(xArg - comp))));
Console.WriteLine(xArg - comp);
xArg -= comp;
}
Console.WriteLine(" " + String.Join("", Enumerable.Repeat("-", maxLength)));
Console.Write(String.Join("", Enumerable.Repeat(' ', 3 + maxLength - NumberWork.NumLength(xArg) - 1)));
Console.WriteLine(xArg * Math.Pow(10, -degree));
}
/// <summary>
/// Performs the addition and prints a detailed solution.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="stepByStep">Indicates whether the operation should be performed in step-by-step mode controlled by user.</param>
public static void Addition(double x, double y, bool stepByStep)
{
// Make the arguments whole.
int degree = NumberWork.GetMostRoundingDegree(x, y);
long xArg = (long)(x * NumberWork.Pow(10, degree));
long yArg = (long)(y * NumberWork.Pow(10, degree));
int maxLength = NumberWork.GetMaxLength(xArg, yArg);
if (NumberWork.NumLength(xArg) < NumberWork.NumLength(yArg))
{
Swap(ref xArg, ref yArg);
}
Console.WriteLine($" {xArg}");
Console.WriteLine($" " + String.Join("", Enumerable.Repeat(" ", maxLength - NumberWork.NumLength(yArg))) + yArg);
Console.WriteLine(" " + String.Join("", Enumerable.Repeat("-", maxLength)));
// Get components of the digits (see GetNumberComponents documentstion).
long[] xComps = NumberWork.GetNumberComponents(xArg);
long[] yComps = NumberWork.GetNumberComponents(yArg);
for (int i = 0; i < maxLength; i++)
{
if (stepByStep)
{
Control.WaitForUserKey();
}
// Add two digits (components).
var result = xComps[i] + (i < yComps.Length ? yComps[i] : 0);
var strResult = result.ToString();
// Write the result of the addition.
Console.Write(String.Join("", Enumerable.Repeat(' ', 3 + maxLength - strResult.Length)));
Console.WriteLine(strResult);
}
// Write the shrinked result.
Console.WriteLine(" " + String.Join("", Enumerable.Repeat("-", maxLength)));
Console.WriteLine(" " + (xArg + yArg) * Math.Pow(10, -degree));
}