clc
clear
disp("ck")
x(1)=0
x(2)=1
x(3)=2
x(4)=3
x(5)=4
x(6)=5

y=7*sin(4*x)

x1=0:0.01:5;
y1=7*sin(4*x1)


plot (x,y,"ro",x1,y1)