4A. math (+ - * /) ------------------ These infix operators combine an expression with another value to yield a new value. Examples: 1+2, MAX-1*5 (see 12A on how to overload these operators for use with floats). "-" may be used as the first part of an expression, with an implied 0, i.e. -a or -b+1 is legal. Note that * and / are by default 16bit operators: (see 9G , Mul())