# polys() is an inert function of polymonial holder, 
 polys(a,b,c,d) is holder of polymonial coefficient for a*x^3+b*x^2+c*x+d,
polys(a_ and b_) is holder of polymonial root of a and b, where a and b are roots of polymonial,
polys() can be activated by activate() or remove its last letter "s";