public void MinorArbitraryInterface()
{
IMathematicalMatrix matrix = MatrixTest.GetTestMatrix();
var rows = matrix.Rows;
var columns = matrix.Columns;
var minor = matrix.Minor(2, 3);
Assert.AreEqual(minor.Columns, columns - 1);
Assert.AreEqual(minor.Rows, rows - 1);
for (var i = 0; i < minor.Rows; i++)
{
for (var j = 0; j < minor.Columns; j++)
{
var addAmount = 0;
if (i >= 2)
{
addAmount++;
}
if (j >= 3)
{
addAmount++;
}
Assert.AreEqual(minor[i, j], i + j + addAmount);
}
}
Assert.IsTrue(MatrixTest.IsOriginalTestMatrix(matrix));
}
public void BottomRight()
{
var matrix = MatrixTest.GetTestMatrix();
var rows = matrix.Rows;
var columns = matrix.Columns;
var minor = matrix.Minor(matrix.Rows - 1, matrix.Columns - 1);
Assert.AreEqual(minor.Columns, columns - 1);
Assert.AreEqual(minor.Rows, rows - 1);
for (var i = 0; i < minor.Rows; i++)
{
for (var j = 0; j < minor.Columns; j++)
{
Assert.AreEqual(minor[i, j], i + j);
}
}
Assert.IsTrue(MatrixTest.IsOriginalTestMatrix(matrix));
}
public void MinorBottomLeftInterface()
{
IMathematicalMatrix matrix = MatrixTest.GetTestMatrix();
var rows = matrix.Rows;
var columns = matrix.Columns;
var minor = matrix.Minor(matrix.Rows - 1, 0);
Assert.AreEqual(minor.Columns, columns - 1);
Assert.AreEqual(minor.Rows, rows - 1);
for (var i = 0; i < minor.Rows; i++)
{
for (var j = 0; j < minor.Columns; j++)
{
Assert.AreEqual(minor[i, j], i + j + 1);
}
}
Assert.IsTrue(MatrixTest.IsOriginalTestMatrix(matrix));
}