public void DiagDouble()
{
var x1 = new DoubleTensor(9);
for (var i = 0; i < x1.Shape[0]; ++i)
{
x1[i] = i + 1;
}
x1.Resize2d(3, 3);
var diag0 = x1.Diagonal(0);
var diag1 = x1.Diagonal(1);
Assert.AreEqual(1, diag0.Shape.Length);
Assert.AreEqual(3, diag0.Shape[0]);
Assert.AreEqual(1, diag1.Shape.Length);
Assert.AreEqual(2, diag1.Shape[0]);
Assert.AreEqual(1, diag0[0]);
Assert.AreEqual(5, diag0[1]);
Assert.AreEqual(9, diag0[2]);
Assert.AreEqual(2, diag1[0]);
Assert.AreEqual(6, diag1[1]);
}
public void ReshapeDoubleTensor()
{
var x2 = new DoubleTensor(200);
Assert.AreEqual(1, x2.Shape.Length);
Assert.AreEqual(200, x2.Shape[0]);
for (var i = 0; i < x2.Shape[0]; ++i)
{
x2[i] = i * 47.11f;
}
x2.Resize2d(10, 20);
Assert.AreEqual(2, x2.Shape.Length);
Assert.AreEqual(10, x2.Shape[0]);
Assert.AreEqual(20, x2.Shape[1]);
x2.Resize3d(4, 25, 2);
Assert.AreEqual(3, x2.Shape.Length);
Assert.AreEqual(4, x2.Shape[0]);
Assert.AreEqual(25, x2.Shape[1]);
Assert.AreEqual(2, x2.Shape[2]);
x2.Resize4d(4, 5, 5, 2);
Assert.AreEqual(4, x2.Shape.Length);
Assert.AreEqual(4, x2.Shape[0]);
Assert.AreEqual(5, x2.Shape[1]);
Assert.AreEqual(5, x2.Shape[2]);
Assert.AreEqual(2, x2.Shape[3]);
x2.Resize5d(2, 2, 5, 5, 2);
Assert.AreEqual(5, x2.Shape.Length);
Assert.AreEqual(2, x2.Shape[0]);
Assert.AreEqual(2, x2.Shape[1]);
Assert.AreEqual(5, x2.Shape[2]);
Assert.AreEqual(5, x2.Shape[3]);
Assert.AreEqual(2, x2.Shape[4]);
// Check that the values are retained across resizings.
x2.Resize1d(200);
Assert.AreEqual(1, x2.Shape.Length);
Assert.AreEqual(200, x2.Shape[0]);
for (var i = 0; i < x2.Shape[0]; ++i)
{
Assert.AreEqual(i * 47.11f, x2[i]);
}
}