Extended data:
Operation symbol
Such as plus sign (+), minus sign (-), multiplication sign (× or), division sign (÷ or/), union of two sets (∩), intersection (∩), root sign (∩ ~), logarithm (log, lg, ln,
Relational character
For example, "=" is an equal sign, "≈" is an approximate sign, "≦" is an unequal sign and ">" is a greater than sign. "
"≒" is a similar symbol, "≒" is a complete equal sign, "∨" is a parallel symbol, "∧" is a vertical symbol, "∧" is a proportional symbol (inverse ratio can be expressed by reciprocal relationship) and "∈" is a symbol. "contained in the symbol"? "is a containing symbol," | "means" separable "(for example, a|b? It means "A is divisible by B".
Baidu encyclopedia-mathematical symbols