please help me with this matlab homework. it is due in 30 minutes time.

while, function find critical n Write a function named myFunction(x) who accepts an input integer x and returns an integer n, such that 1+2+...+n is just over x or exactly equal to x for example, input x=4 should return 3 input x=10 should return 4 input x=7 shoud return 4 Note, use while-loop, running_sum, count