`pmatrix` and `bmatrix`This neuron appears to activate strongly when encountering mathematical notation for matrices, specifically using `pmatrix` and `bmatrix` delimiters, which are common in LaTeX and mathematical typesetting. The presence of terms like "matrices", "$A = \begin{pmatrix} a & b \\ c & d \end{pmatrix}$", and "$A^2 B = \begin{bmatrix} ... \end{bmatrix}$" directly points to this. The tokens `[` and `{` in `MAX_ACTIVATING_TOKENS` also support this, as they are often used to define matrices or their elements.`pmatrix` and `bmatrix`