public static string GetMessage(MatrixOperationType matrixType)
{
switch (matrixType)
{
case MatrixOperationType.Addition:
return("The two matrices could not be added because their dimensions were unequal.");
case MatrixOperationType.Determinant:
return("The determinant of a non-square matrix does not exist.");
case MatrixOperationType.Division:
return("A matrix cannot be divided by the zero element of its field.");
case MatrixOperationType.Eigenvalue:
return("Only square matrices have eigenvalues.");
case MatrixOperationType.Eigenvector:
return("Only square matrices have eigenvectors.");
case MatrixOperationType.Inverse:
return("Only square matrices with non-zero determinant have an inverse.");
case MatrixOperationType.Multiplication:
return("The two matrices could not be multiplied, the width of the first" +
"should be equal to the height of the second.");
case MatrixOperationType.Trace:
return("The trace of a matrix exists only if the matrix is square.");
case MatrixOperationType.Unit:
return("Only square matrices can be a unit matrix.");
}
throw new ArgumentException("The given MatrixOperationType was " +
"not a valid object.");
}
public IncompatibleOperationException(MatrixOperationType type, string message)
: base(message)
{
MatrixType = type;
}
public IncompatibleOperationException(MatrixOperationType type) : base(GetMessage(type))
{
MatrixType = type;
}
