// ---------------------------------------------------------------------
// Subtract a scalar value from a matrix
// Usage:
// m.sub (3.1415);
// ---------------------------------------------------------------------
public void sub(double k)
{
for (int i = 0; i < r; i++)
{
for (int j = 0; j < c; j++)
{
this[i, j] = SimpleComplex.complexSub(this[i, j], new SimpleComplex(k, 0.0));
}
}
}
// ---------------------------------------------------------------------
// Subtract a scalar value from a matrix and return a new matrix
// Usage:
// Matrix m1 = Matrix.sub (m2, 2.718);
// ---------------------------------------------------------------------
public static Matrix sub(Matrix x, double k)
{
var result = new Matrix(x.r, x.c);
for (int i = 0; i < x.r; i++)
{
for (int j = 0; j < x.c; j++)
{
result[i, j] = SimpleComplex.complexSub(x[i, j], new SimpleComplex(k, 0.0));
}
}
return(result);
}
// ---------------------------------------------------------------------
// Subtract a matrix from this. this is modified
// Usage:
// m.sub (m1);
// ---------------------------------------------------------------------
public void sub(Matrix x)
{
if (sameDimensions(this, x))
{
for (int i = 0; i < x.r; i++)
{
for (int j = 0; j < x.c; j++)
{
this[i, j] = SimpleComplex.complexSub(this[i, j], x[i, j]);
}
}
}
else
{
throw new EMatrixException("Matrices must be the same dimension to perform subtraction");
}
}
// Sub Methods:
// Methods that return a new matrix
// m = Matrix.sub (m1, m2);
// m = Matrix.sub (m1, 2.3);
// Methods that modify the matrix object
// m.sub (m1);
// m.sub (2.3);
// ---------------------------------------------------------------------
// Subtract two matrices together and return the result as a new matrix
// Usage:
// Matrix m3 = Matrix.sub (m1, m2);
// ---------------------------------------------------------------------
public static Matrix sub(Matrix x, Matrix y)
{
if (sameDimensions(x, y))
{
var result = new Matrix(x.r, x.c);
for (int i = 0; i < x.r; i++)
{
for (int j = 0; j < x.c; j++)
{
result[i, j] = SimpleComplex.complexSub(x[i, j], y[i, j]);
}
}
return(result);
}
else
{
throw new EMatrixException("Matrices must be the same dimension to perform addition");
}
}
