Found this in a book: $$H=max\{0,X\cdot W^{(1)}+b^{(1)}\}$$ $$max\{0,\begin{bmatrix} 0& 0 \\0 &1\\ 1 &0\\ 1&1\end{bmatrix} \cdot \begin{bmatrix} -0.4& 0.1 & 0.9 \\0.8 & -0.2 & -0.7\end{bmatrix} +\begin{bmatrix} 0.6&-0.4& -0.7 \end{bmatrix}= \begin{bmatrix} 0.6 & -0.4 & -0.7 \\ 1.4&-0.6&-1.4\\0.2& -0.3&0.2\\1&-0.5& -0.5\end{bmatrix}\}$$
What kind of multiplication is this? It's definitely not matrix multiplication. It's not point wise ($\odot$) and I guess you can't call that scalar product. Bit confusing since such a multiplication has never been mentioned before in the book.