The MATLAB while loop is a function that repeats the executable program as long as the expression remains true, according to Tutorials Point. While loops can continue indefinitely as long as the end conditions are not met.
These loops are useful when the number of iterations is not known beforehand, unlike loops that are set for a predetermined time. For example, if a = 1 and the while loop requires that a < 20, having the executable program a = a + 1 will make the loop continue until a = 20. Multiple conditions are feasible in a single while loop. A break statement is used for exiting a loop statement prematurely.