Operator

Function

Example

+=

add an operand to a variable

/* add 3 to x */
i += 3 ;

-=

subtract an operand from a variable

/* take k from j */
j -= k ;

*=

multiply a variable by an operand

/* multiply w by 3 */
w *= 3 ;

/=

divide a variable by an operand

/* halve h */
h /= 2 ;