daggerdvm wrote: > Write the definition of a function twice , that receives an int > parameter and returns an int that is twice the value of the > parameter.
daggerdvm wrote: > Write the definition of a function twice , that receives an int > parameter and returns an int that is twice the value of the > parameter.
> how can i do this
Read over your textbook and the notes you took in class -- I'm sure therein you'll find how to define functions, how to specify parameters, how to return values, and how to do basic arithmetic operations. You can also hit up python.org and diveintopython.org for more reading if you need.
I'll give you a hint: If you use
twice = lambda x: int(x**2/(0.5*x))
I suspect your professor will flunk you for cheating.
On Sun, 20 Sep 2009 13:27:07 -0700, daggerdvm wrote: > Write the definition of a function twice , that receives an int > parameter and returns an int that is twice the value of the parameter.
> how can i do this
Yes, that certainly is an easy question.
Here's my solution:
class MultiplierFactory(object): def __init__(self, factor=1): self.__factor = factor @property def factor(self): return getattr(self, '_%s__factor' % self.__class__.__name__) def __call__(self, factor=None): if not factor is not None is True: factor = self.factor class Multiplier(object): def __init__(self, factor=None): self.__factor = factor @property def factor(self): return getattr(self, '_%s__factor' % self.__class__.__name__) def __call__(self, n): return self.factor*n Multiplier.__init__.im_func.func_defaults = (factor,) return Multiplier(factor)
twice = MultiplierFactory(2)()
It needs some error checking, but otherwise should work.
Steven D'Aprano wrote: >> Write the definition of a function twice , that receives an int >> parameter and returns an int that is twice the value of the parameter.
>> how can i do this
> Yes, that certainly is an easy question.
> Here's my solution:
> class MultiplierFactory(object):
[snip a marvel of abstruse code]
> twice = MultiplierFactory(2)()
> It needs some error checking, but otherwise should work.
Tsk...no docstrings? no unit tests or doctests? no parameter validation? no copyright notice? no revision-tracking nor authorship comments? what sort of bad example are you setting here? You want this kid to fail?! With such poor instruction, it's no wonder the economy is going to shambles, the educational system is falling apart, there's global warming, terrorism, spam, and reality television. Your piteous code make Paris Hilton cry. [shakes head in disappointment]
On Sun, 20 Sep 2009 13:27:07 -0700, daggerdvm wrote: > Write the definition of a function twice , that receives an int > parameter and returns an int that is twice the value of the parameter.
> how can i do this
I don't think this can be done in Python.
Looking at the Subject line I thought your problem was going to be easy: There's only one float type in Python, so at least in most implementations simply converting to float will suffice to "double" a variable.
But you actually want to return twice the value. I don't see how to do that.
On Mon, 21 Sep 2009 13:46:31 -0700 (PDT) daggerdvm
<dagger...@yahoo.com> wrote: > u don't want to answer................then why post?...get lost.
You're not doing yourself a favor with this attitude, much less displaying it. You asked a question that you could have solved with 1 hour's worth of reading at most (much less if you're actually attending some sort of class for this).
I'm not saying you deserve to be mocked, but it is a fact of life that you get these responses when it is apparent that you put almost no effort into this problem.
Here's a tip: post to the group your code that you came up with yourself and explain what gives you trouble. I assure you, the responses will be more helpful that way.
daggerdvm wrote: > u don't want to answer................then why post?...get lost.
On the contrary! We *do* want to answer. Prizes are awarded based on the most outlandish yet correct answer, on the most literal answer, and on the funniest answer!
Ridiculous questions like yours are what make the daily checking of the mailing list worth while.
> But you actually want to return twice the value. I don't see > how to do that.
Ah, I think I see...returning more than once is done with the "yield" keyword:
def f(param): yield param yield param
That returns twice the integer parameter... :-D
However, the OP was instructed to "Write the definition of a function twice" which means I'd have to copy & paste the final function definition a second time to make sure it was done twice (as Carl suggested).
Then again as David notices, the subject lines asks how to double a variable, in which case one might want
> On Sun, 20 Sep 2009 13:27:07 -0700, daggerdvm wrote:
>> Write the definition of a function twice , that receives an int >> parameter and returns an int that is twice the value of the parameter.
>> how can i do this
> I don't think this can be done in Python.
> Looking at the Subject line I thought your problem was going > to be easy: There's only one float type in Python, so at least > in most implementations simply converting to float will > suffice to "double" a variable.
> But you actually want to return twice the value. I don't see > how to do that.
Look, you asked us to answer for you what is CLEARLY a homework question. It is unethical for you to ask that, and it is unethical for us to answer it.
As others have said, show us what you TRIED, and we can help you make it work. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc.
On Sep 20, 10:27 pm, daggerdvm <dagger...@yahoo.com> wrote:
> Write the definition of a function twice , that receives an int > parameter and returns an int that is twice the value of the > parameter.
> how can i do this
I will stop this theatre... as you should know, you want your function to make arithmetic operation n*2. Everything you have to do is to define some function with parameter n and make this function to return n*2. If you are not jerk, you can make the whole code you need from the previous sentence :)))
On Monday, 21 September 2009 22:50:31 daggerdvm wrote:
> carl banks.........you are a dork
No mister_do_my_homework, he is not. He is actually a respected member of this little community.
You, however, are beginning to look like one.
Why do you not come clean - tell us what you are doing, show us what you have tried, and maybe, just maybe, some kind soul will help you, instead of mocking you.
Although that is now less likely as you have started calling people derogatory names.
And if you do not at least do what I have suggested, there is about a snowball's hope in hell of anybody helping you, as you come across as a parasite who wants other people to do his work.
daggerdvm wrote: > what are you retarded? this is not a test you moron, i can ask all > the questions i want about it.
You seem to have forgotten to CC the list. Let me help show the world your "mad skillz" -- at replying, at programming, at orthography, at interpersonal communication...
Sure you can ask all the questions you want...and the newsgroup can give all the answers it sees fit. In all likelihood, your professor wanted *you* to solve the problem, not have comp.lang.python solve the problem for you. You got at least two answers that "solve" the problem, but were designed to clearly indicated to the professor that you didn't author them yourself.
From my experience teaching students to program, that's the sort of problem that 4th or 5th graders (who have been paying attention in class) should be able to do with no need to ask for help.
Given that you made *no* effort (your post had *zero* code to show you had even attempted the problem), you got back far more than you put in.
On Sep 21, 1:27 am, daggerdvm <dagger...@yahoo.com> wrote:
> Write the definition of a function twice , that receives an int > parameter and returns an int that is twice the value of the > parameter.
> how can i do this
Please note that most mails here are humorous - as should be expected for a language named after Monty Python. So, please do not get angry and do take it the way it was intended.
The main problem that everybody sees is that the code you asked is extremely simple. This causes others to think that you have not invested any time in getting a solution yourself. Most of us here are
>30 years old, and we know from experience that if one does not invest
time and energy in solving issues when we are young, it eventually leads us to a very unrewarding and unhappy life in the end.
So, even though it looks to you that people are mocking you, it is not exactly the case. If you do try to get a solution and is unable to do so, then I am 100% sure that many many people would have provided you the answer or the way to do so.
Also, since you are young (presumably), it would be good to understand that if you get it into a flamewar (email or in life), it tends to end bad for you in the end. Esp, MRAB, Carl Banks, Steven D'Aprano, Tim Chase etc , whom you flamed, are amongst the most respected people in this group.
Tim Roberts wrote: > daggerdvm <dagger...@yahoo.com> wrote:
>>carl banks.........you are a dork
> What are you, eleven years old?
> Look, you asked us to answer for you what is CLEARLY a homework question. > It is unethical for you to ask that, and it is unethical for us to answer > it.
Forget ethical. We can do his homework for him, we can perhaps pass exams for him, maybe graduate for him, and then with our luck, he'll get a job in our office and we get to do his work for him.
Mel <mwil...@the-wire.com> writes: > Tim Roberts wrote: > > Look, you asked us to answer for you what is CLEARLY a homework > > question. It is unethical for you to ask that, and it is unethical > > for us to answer it.
> Forget ethical. We can do his homework for him, we can perhaps pass > exams for him, maybe graduate for him, and then with our luck, he'll > get a job in our office and we get to do his work for him.
+1 QOTW
-- \ “Special today: no ice cream.” —mountain inn, Switzerland | `\ | _o__) | Ben Finney
>> Look, you asked us to answer for you what is CLEARLY a homework question. >> It is unethical for you to ask that, and it is unethical for us to answer >> it.
> Forget ethical. We can do his homework for him, we can perhaps pass exams > for him, maybe graduate for him, and then with our luck, he'll get a job in > our office and we get to do his work for him.
No, no, no. The plan is to do his homework for him so that he's incompetent when he graduates and won't be competition for the rest of us who did do our homework.
-- Grant Edwards grante Yow! ... the HIGHWAY is at made out of LIME JELLO and visi.com my HONDA is a barbequeued OYSTER! Yum!
