/// <summary>Broadcasts the tensor.</summary>
/// <param name="lhs">The LHS.</param>
/// <param name="rhs">The RHS.</param>
/// <returns></returns>
public Tuple <SuperArray, SuperArray> BroadcastTensor(SuperArray lhs, SuperArray rhs)
{
if (!lhs.IsSameSizeAs(rhs))
{
if (lhs.Shape[0] == rhs.Shape[0] && (lhs.Shape[1] == 1 || rhs.Shape[1] == 1))
{
if (lhs.Shape[1] == 1)
{
lhs = lhs.RepeatTensor(1, rhs.Shape[1]);
}
if (rhs.Shape[1] == 1)
{
rhs = rhs.RepeatTensor(1, lhs.Shape[1]);
}
}
if (lhs.Shape[1] == rhs.Shape[1] && (lhs.Shape[0] == 1 || rhs.Shape[0] == 1))
{
if (lhs.Shape[0] == 1)
{
lhs = lhs.RepeatTensor(rhs.Shape[0], 1);
}
if (rhs.Shape[0] == 1)
{
rhs = rhs.RepeatTensor(lhs.Shape[0], 1);
}
}
if (lhs.Shape[1] == 1 && rhs.Shape[0] == 1)
{
if (lhs.Shape[1] == 1)
{
lhs = lhs.RepeatTensor(1, rhs.Shape[1]);
}
if (rhs.Shape[0] == 1)
{
rhs = rhs.RepeatTensor(lhs.Shape[0], 1);
}
}
if (lhs.Shape[0] == 1 || rhs.Shape[1] == 1)
{
if (lhs.Shape[0] == 1)
{
lhs = lhs.RepeatTensor(rhs.Shape[0], 1);
}
if (rhs.Shape[1] == 1)
{
rhs = rhs.RepeatTensor(1, lhs.Shape[1]);
}
}
}
return(new Tuple <SuperArray, SuperArray>(lhs, rhs));
}
/// <summary>
/// Tiles the specified tensor.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="repetitions">The repetitions.</param>
/// <returns></returns>
public SuperArray Tile(SuperArray x, long repetitions)
{
long[] shape = new long[x.DimensionCount];
for (int i = 0; i < shape.Length; i++)
{
shape[i] = 1;
}
shape[shape.Length - 1] = repetitions;
return(x.RepeatTensor(shape));
}
