public static Matrix simulFill(int a)
{
Matrix b = new Matrix(a, a + 1);
if (a == 2 || a == 3)
{
if (a == 2)
{
Console.WriteLine("\r\nEnter the values (In the form aX + bY = c)!");
}
else
{
Console.WriteLine("\r\nEnter the values (In the form aX + bY + cZ = c)!");
}
for (int i = 0; i < a; i++)
{
Console.Write("\r\nEnter the co-efficient of X: ");
b.matrix[i, 0] = CheckClass.checkDouble(Console.ReadLine());
Console.Write("Enter the co-efficient of y: ");
b.matrix[i, 1] = CheckClass.checkDouble(Console.ReadLine());
if (a == 3)
{
Console.Write("Enter the co-efficient of Z: "); b.matrix[i, 2] = CheckClass.checkDouble(Console.ReadLine());
}
Console.Write("Enter the constant term: ");
if (a == 2)
{
b.matrix[i, 2] = CheckClass.checkDouble(Console.ReadLine());
}
else
{
b.matrix[i, 3] = CheckClass.checkDouble(Console.ReadLine());
};
}
}
else
{
Console.WriteLine("\r\nWrong dimension. Only for 2 or 3 unknowns!\r\n");
}
return(b);
}
/// <summary>
/// To test functionalities
/// </summary>
public static void run()
{
Console.WriteLine("An application to carry out arithmetic operations on fractions!\r\n");
Console.WriteLine("What Operation do you wish to perform? ");
Console.WriteLine("Enter '1' for addition, '2' for substraction,");
Console.WriteLine("'3' for multiplication, '4' for division,");
Console.WriteLine("'5' to change a fraction to a decimal, '6' to change a decimal to a fraction,");
Console.WriteLine("and '7' to reduce a fraction to its lowest term.");
string cont = "y";
while (cont.ToUpper() == "Y" || cont.ToUpper() == "YES")
{
Console.Write("\r\nEnter the operation code for your operation: ");
string chkInt = Console.ReadLine();
while (!Regex.IsMatch(chkInt, "^(1|2|3|4|5|6|7)$") && chkInt.ToUpper() != "exit".ToUpper())
{
Console.Write("Please enter an appropriate operation number (or 'exit' to stop program): ");
chkInt = Console.ReadLine();
}
if (chkInt.ToUpper() == "exit".ToUpper())
{
goto end; //Environment.Exit(0);
}
int op = int.Parse(chkInt);
Console.Write("\r\nOperation code: " + op);
string ops = "";
if (op == 1)
{
ops = "Sum";
}
else if (op == 2)
{
ops = "Difference";
}
else if (op == 3)
{
ops = "Multiplication";
}
else if (op == 4)
{
ops = "Division";
}
else if (op == 5)
{
ops = "Convert fraction to decimal";
}
else if (op == 6)
{
ops = "Convert decimal to fraction";
}
else
{
ops = "Lowest term reduction";
}
Console.WriteLine(" <=> (" + ops + " Operation).");
Console.WriteLine("\r\nNOTE: You must enter a fraction in the form x/y\r\n");
if (op >= 1 && op <= 4)
{
Console.Write("Enter the first fraction: ");
Fraction a = Console.ReadLine();
Console.Write("\r\nEnter the second fraction: ");
Fraction b = Console.ReadLine();
Fraction c = new Fraction();
string sign = "";
if (op == 1)
{
c = a + b; sign = " + ";
}
else if (op == 2)
{
c = a - b; sign = " - ";
}
else if (op == 3)
{
c = a * b; sign = " * ";
}
else
{
c = a / b; sign = " / ";
}
Console.WriteLine("\r\nFirst Fraction: " + a.ToString());
Console.WriteLine("Second Fraction: " + b.ToString());
Console.WriteLine("Answer: " + c.ToString() + "\r\n");
Console.WriteLine(a.ToString() + sign + b.ToString() + " = " + c.ToString());
}
if (op == 5 || op == 6 || op == 7)
{
if (op == 5)
{
Console.Write("Enter the fraction: ");
Fraction a = Console.ReadLine();
Console.WriteLine("\r\nThe decimal equivalent is: " + (double)a);
}
else if (op == 6)
{
Console.Write("Enter the decimal: ");
Fraction a = CheckClass.checkDouble(Console.ReadLine());
Console.WriteLine("\r\nThe decimal equivalent is: " + a.ToString());
}
else
{
Console.Write("Enter the unresolved fraction: ");
Fraction a = Console.ReadLine();
Console.WriteLine("\r\nThe resolved fraction is: {0}", Fraction.lowestTerm(a));
}
}
Console.Write("\r\nDo you wish to continue? Enter 'y' for yes and 'n' for no: ");
cont = Console.ReadLine();
}
end : Console.WriteLine("\r\nTHE END! (press any key to exit)");
Console.ReadKey();
}
public static void run()
{
// Console.WriteLine("A program to multiply two matrices \r\n");
// Console.WriteLine("\r\nFirst MatriRow\r\n");
// Matrix a = new Matrix();
// Console.Write("Enter the Row-dimension: ");
// a.Row = CheckClass.checkInt(Console.ReadLine());
// Console.Write("Enter the Column-dimension: ");
// a.Column = CheckClass.checkInt(Console.ReadLine());
// a.fill();
// Console.WriteLine("\r\nSecond MatriRow\r\n");
// Matrix b = new Matrix();
// Console.Write("Enter the Row-dimension: ");
// b.Row = CheckClass.checkInt(Console.ReadLine());
// Console.Write("Enter the Column-dimension: ");
// b.Column = CheckClass.checkInt(Console.ReadLine());
// b.fill();
// //MatriRow c = new MatriRow();
// Matrix c = a * b;
// Console.WriteLine("");
// Console.WriteLine("The first matriRow is: " + a);
// Console.WriteLine("The second matriRow is: " + b);
// Console.WriteLine("Their product is: " + c);
// Console.ReadKey();
Console.WriteLine("A program to solve simultaneous equations!");
string cont = "y";
while (cont.ToUpper() == "Y" || cont.ToUpper() == "YES")
{
Console.Write("\r\nHow many variables/unknowns: ");
int var = CheckClass.checkInt(Console.ReadLine());
if (var == 2 || var == 3)
{
try
{
Matrix simul = Matrix.simulFill(var);
Matrix ans;
if (var == 2)
{
ans = Matrix.simul2(simul); Console.Write("\r\nValue of X and Y is: {0, 30}", ans);
}
else
{
ans = Matrix.simul3(simul); Console.Write("\r\nValue of X and Y is: {0, 30}", ans);
}
}
catch (Exception ex)
{
Console.WriteLine("\r\nError: " + ex.Message);
Console.WriteLine("Stack Trace: " + ex.StackTrace);
}
}
else
{
Console.WriteLine("Wrong variable input. Can resolve 2 or 3 variables/unknowns");
}
Console.Write("\r\nDo you wish to continue? Enter 'y' for yes and 'n' for no: ");
cont = Console.ReadLine();
}
Console.WriteLine("\r\nTHE END! Press any key to exit.");
Console.ReadKey();
}