horner form is called from another file and it takes float as input
we are asked to input using keyboard xmin,xmax,step size
set x =some initial value
using n as a counter we print corresponding values of x,Csin,Msin,Error i.e Csin-Msin
note x is incremented at each step by step size(0.1 in our case)
NOTE--the error calculated is the difeerence and neither the relative nor the absolute error