import os
from math import *

os.chdir(r"C:\Users\u202-09\Desktop\Новая папка\1\TEMA7")
f = open("output.txt","w")

t = 3
yt = 0
out = []
inp = []

for i in range(100):
    inp.append(2*sin(i/7+0.35))
    out.append(fun(inp[i],yt,t))
    yt = out[i]

f.write("X\tY\n")
for i in range(len(out)):
    f.write(str(inp[i])+"\t"+str(out[i])+"\n")