multiple assignment
making more than one assignment to the same variable during the execution of a program.
update
an assignment where the new value of the variable depends on the old.
initialization
an assignment that gives an initial value to a variable that will be updated.
increment
an update that increases the value of a variable (often by one).
decrement
an update that decreases the value of a variable.
iteration
repeated execution of a set of statements using either a recursive function call or a loop.
infinite loop
a loop in which the terminating condition is never satisfied.