The New Wave of British Heavy Metal (NWOBHM) occurred in the late 1970s after the fall of the original British heavy metal bands like Led Zeppelin and Black Sabbath. The progressive sounds of metal were sped up and turned into blistering power chords.
... of any field whose characteristic is not 2. (In a field of characteristic 2, the element 2a is zero and it is impossible to divide by it.)
The symbol
<math>\pm ...