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= MyNewPage = | ---- '刚入门,你还要留我多长时间?才肯放我晋级行者啊!!!!' '自己编写的一个小小简单python程序' |
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''' #ax^2+bx+c=0 解二次方程的根 |
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---- | import math |
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def getroot(a,b,c): | |
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if a==0: if b!=0: r1=r2=-c/b else: r1=r2=None print('a,b,c!=0') else: d=b**2-4*a*c e1=-b+math.sqrt(abs(d)) e2=-b-math.sqrt(abs(d)) if d>0: r1=e1/(2*a) r2=e2/(2*a) elif d==0: r1=r2=-b/(2*a) else: r1=r2=None print('无根') return(r1,r2) |
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a=['a','b','c'] b=[0,0,0] for i in range(3): a[i]=input("please float integer %s="%a[i]) if a[i]: try: j=float(a[i]) except ValueError as err: print(err) break b[i]=j print('方程的根为:',getroot(b[0],b[1],b[2])) ''' |
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xkcd - A webcomic of romance, sarcasm, math, and language - By ... - [ 翻译此页 BETA ]Permanent link to this comic: http://xkcd.com/353/. Image URL (for hotlinking/embedding): http://imgs.xkcd.com/comics/python.png ... xkcd.com/353/ - 9k - 网页快照 - 类似网页 | ["PythonLearningPlan"] ["MyNewPage"] |
'刚入门,你还要留我多长时间?才肯放我晋级行者啊!!!!' '自己编写的一个小小简单python程序'
#ax^2+bx+c=0 解二次方程的根 import math def getroot(a,b,c): if d>0: a=['a','b','c'] b=[0,0,0] for i in range(3): except ValueError as err: print('方程的根为:',getroot(b[0],b[1],b[2]))
else:
else:
return(r1,r2)
elif d==0:
else:
b[i]=j
["PythonLearningPlan"] ["MyNewPage"]