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- 神仙别闹 2021-10-12 15:43关注
import math str_in = input('请输出方程系数(a b c):') num = [int(n) for n in str_in.split()] a= num[0]#a b = num[1]#b c =num[2]#c if a != 0: delta = b**2-4*a*c if delta < 0: print("-1") elif delta == 0: s = -b/(2*a) print("%.2f" % s) else : root = math.sqrt(delta) x1 = (-b+root)/(2*a) x2 = (-b-root)/(2*a) print("%.2f" % x2,"%.2f" % x1)
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