public static GenericMatrix <T> operator -(GenericMatrix <T> firstMatrix, GenericMatrix <T> secondMatrix)
{
MatrixCheckerAndExceptionHandler(firstMatrix, secondMatrix);
var result = new GenericMatrix <T>(firstMatrix.Rows, firstMatrix.Columns);
for (int rowsToSet = 0; rowsToSet < firstMatrix.Rows; rowsToSet++)
{
for (int colsToSet = 0; colsToSet < firstMatrix.Columns; colsToSet++)
{
result[rowsToSet, colsToSet] = (dynamic)firstMatrix[rowsToSet, colsToSet] - (dynamic)secondMatrix[rowsToSet, colsToSet];
}
}
return(result);
}
public static GenericMatrix <T> operator *(GenericMatrix <T> firstMatrix, GenericMatrix <T> secondMatrix)
{
MatrixCheckerAndExceptionHandler(firstMatrix, secondMatrix);
var result = new GenericMatrix <T>(firstMatrix.Rows, firstMatrix.Columns);
var tempValue = default(T);
for (int currentRow = 0; currentRow < firstMatrix.Rows; currentRow++)
{
for (int currentCol = 0; currentCol < firstMatrix.Columns; currentCol++)
{
for (int index = 0; index < firstMatrix.Columns; index++)
{
tempValue += (dynamic)firstMatrix[currentRow, index] * (dynamic)secondMatrix[index, currentCol];
}
result[currentRow, currentCol] = tempValue;
tempValue = default(T);
}
}
return(result);
}
private static void MatrixCheckerAndExceptionHandler(GenericMatrix <T> firstMatrix, GenericMatrix <T> secondMatrix)
{
if (firstMatrix.Rows != secondMatrix.Rows)
{
throw new ArgumentException("The Matrices have different rows!");
}
if (firstMatrix.Columns != secondMatrix.Columns)
{
throw new ArgumentException("The Matrices have different columns!");
}
if (firstMatrix.GetType() != secondMatrix.GetType())
{
throw new ArgumentException("The Matrices have different types of values! No kind if action can be performed of different type of matrices!");
}
//Check type of matrix values. Currently allowed value types of GenericMatrix are: (see below)
if (firstMatrix.GetType() == typeof(GenericMatrix <int>))
{
}
else if (firstMatrix.GetType() == typeof(GenericMatrix <long>))
{
}
else if (firstMatrix.GetType() == typeof(GenericMatrix <float>))
{
}
else if (firstMatrix.GetType() == typeof(GenericMatrix <double>))
{
}
else if (firstMatrix.GetType() == typeof(GenericMatrix <decimal>))
{
}
else
{
throw new ArgumentException("The GenericMatrix need to have some ValueType as used type! Strings, chars and so on are not allowed!");
}
}