“The Matrix Resurrections,” a Warner Bros. release, is rated R by the Motion Picture Association of America for violence and some language. Running time: 148 minutes.

But if defying one's heteronormative programming and entering the Matrix was once a balletic finesse, in "Resurrections" the battle is blunter and the tone less exultant.

But if defying one's heteronormative programming and entering the Matrix was once a balletic finesse, in “Resurrections” the battle is blunter and the tone less exultant.

In the 22 years since the “The Matrix” debuted, it has never left us — or depending on your pill of choice, we have never left it. Despite two largely disappointing sequels, “The Matrix” still hasn't ...

“The Matrix Resurrections,” a Warner Bros. release, is rated PG-13 by the Motion Picture Association of America for violence and some language. Running time: 148 minutes.

But if defying one’s heteronormative programming and entering the Matrix was once a balletic finesse, in “Resurrections” the battle is blunter and the tone less exultant.

“The Matrix Resurrections,” a Warner Bros. release, is rated R by the Motion Picture Association of America for violence and some language. Running time: 148 minutes.

We analyze two popular semidefinite programming relaxations for quadratically constrained quadratic programs with matrix variables. These relaxations are based on vector lifting and on matrix lifting; ...