How to pronounce “commutator” in English

challenged a friend of his in college to solve it that friend became like a tenure professor in geophysics at Caltech when he was in his 20s so likehe's got some brain power up there and he came up with a commutator and it was like a insanely inefficient solution butyou know he solved it overnight um so you know the the way I like to think about these things is is how they relate