* Add Characters
- UP TACK WITH CIRCLE ABOVE (`U+27DF`).
- MINUS SIGN WITH FALLING DOTS (`U+2A2B`).
- MINUS SIGN WITH RISING DOTS (`U+2A2C).
- MULTIPLICATION SIGN WITH UNDERBAR (`U+2A31`).
- SEMIDIRECT PRODUCT WITH BOTTOM CLOSED (`U+2A32`).
- TILDE OPERATOR WITH RISING DOTS (`U+2A6B`).
- SIMILAR MINUS SIMILAR (`U+2A6C`).
- APPROXIMATELY EQUAL TO OR EQUAL TO (`U+2A70`) ... EQUALS SIGN ABOVE TILDE OPERATOR (`U+2A73`).
- VERTICAL LINE WITH CIRCLE ABOVE (`U+2AEF`) ... DOWN TACK WITH CIRCLE BELOW (`U+2AF1`).
* typo
* Add
- N-ARY TIMES OPERATOR (`U+2A09`).
* Remove bigmult for now, optimize diagonals
73aca2eef9