Still, a highly irregular period is usually a sign that something else isn't right in your body.. Take note of these 10 things that could be messing with your menstrual cycle, and see your doc if anything seems too far off. 1 of 12. View as one page.
immutable - not subject or susceptible to change or variation in form or quality or nature; the view of that time was that all species were immutable, created by God
Permutations. A permutation is an arrangement of objects, without repetition, and order being important. Another definition of permutation is the number of such arrangements that are possible. Since a permutation is the number of ways you can arrange objects, it will always be a whole number.