Version
MathCAT 0.7.5
Issue
MathCAT incorrectly calls certain matrices the identity matrix. For example, the Pauli matrix $\sigma_z$ is incorrectly verbalized as "the two-by-two identity matrix":
$$
\sigma_z = \begin{bmatrix}
1 & 0\\
0 & -1
\end{bmatrix}
$$
I believe I have encountered this issue in several matrices where the diagonal elements were some combination of ones, zeros, and negative ones.