.. math::
- \left \lfloor \frac{\texttt{prev->width} - \texttt{block_size.width}}{\texttt{shift_size.width}} \right \rfloor \times \left \lfloor \frac{\texttt{prev->height} - \texttt{block_size.height}}{\texttt{shift_size.height}} \right \rfloor
+ \left \lfloor \frac{\texttt{prev->width} - \texttt{block\_size.width}}{\texttt{shift\_size.width}} \right \rfloor \times \left \lfloor \frac{\texttt{prev->height} - \texttt{block\_size.height}}{\texttt{shift\_size.height}} \right \rfloor
size, 32-bit floating-point, single-channel