1 import math 2 import sys 3 4 def f(dep,fib): 5 if dep==10: 6 print(fib*dep) 7 else: 8 fib=fib*dep 9 f(dep+1,fib) 10 print(fib) 11 12 13 def e(max): 14 fib=ans=1 15 for i in range(max): 16 fib*=i+1 17 ans+=1/fib 18 print(ans) 19 20 21 def sol(a,b,c): 22 delta=b*b-4*a*c 23 if a==0: 24 sys.stderr.write("a=0 ") 25 else: 26 if delta>=0: 27 return (-b+math.sqrt(delta))/(2*a),(-b-math.sqrt(delta))/(2*a) 28 else: 29 sys.stderr.write("delta<0 ") 30 31 if __name__ == '__main__': 32 f(1,1) 33 e(10) 34 sol(1,5.86,8.5408) 35 sol(0,1,1) 36 sol(1,0,1)