$i$ is the loop counter. On the first pass through the loop, $i$ is set to startValue. On the second pass through the loop $i$ is set to startValue$+1.$ The Matlab statements between the for and the end are evaluated until $i>$ endValue

Example $1$ Print the square root of the first $n$ integersSee pp$.102-105$ for a description of the fprintf statement.Loop counter incremented by specified amount:The increment can be any positive or negative numberExample $2$ Print the square root of the even integers up to nWhat happens when n$=9$ or n$=11?($c$)2007,$