This is equivalent to make_half2, which is undocumented and doesn't seem to always exist.

@brief return whether value is an object @sa https://json.nlohmann.me/api/basic_json/is_object/

Swaps the values of \c *this and \a other. * Overloaded for performance: this version performs a \em shallow swap by swapping pointers and attri

\sa MatrixBase::setIdentity() */

return the last read token (for errors only). Will never contain EOF (an arbitrary value that is not a valid char value, often -1), because 255 may l

Returns two orthogonal vectors to vec which are also orthogonal to each other. */

\returns a view of the upper triangular matrix U */

\brief Returns number of performed QR-like iterations. */

accessor overload required to override default assignment operator (templates are not allowed to replace default compiler-generated assignments).