placeholder for matrix functions
moving exp out of math/matrix.hpp
moving log out of math/matrix.hpp
moving trace out of math/matrix.hpp
moving prod out of math/matrix.hpp
moving prod out of math/matrix.hpp
moving sum out of math/matrix.hpp
moving sd out of math/matrix.hpp
moving variance out of math/matrix.hpp
moving mean out of math/matrix.hpp
moving mean out of math/matrix.hpp
moving max out of math/matrix.hpp
moving max out of math/matrix.hpp
moving min out of math/matrix.hpp
moving dot_product out of math/matrix.hpp
moving dot_product out of math/matrix.hpp
moving columns_dot_product out of math/matrix.hpp
moving columns_dot_product out of math/matrix.hpp
moving columns_dot_self out of math/matrix.hpp
moving dot_self out of math/matrix.hpp