Creates an \(n \times n\) identity matrix.

Parameters:¶

size: int¶

The size \(n\) along one dimension of the identity matrix.

dtype: DTypeLike | None = None¶

The numpy.dtype of the array elements. The default is None which represents the smallest unsigned data type for this Array subclass (the first element in dtypes).

Returns:¶

A 2-D identity matrix with shape (size, size).