math creative solution for The Angles of a Triangle by veky - python coding challenges

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math solution in Creative category for The Angles of a Triangle by veky
from math import*
checkio=lambda*s:sorted(round(180/pi*acos((sum(x*x for x in
s)-2*x*x)*x/2/exp(sum(map(log,s)))))if 0
                        Aug. 21, 2013

                        
                            Comments:
                            
                                
                                    lesenv
 on Oct. 2, 2013, 7:19 p.m.

                                    <p>wow, why do you write always one-liners? is it just for fun or the challenge or is there another reason?</p>

<p>funny, that this is possible... completely unreadable by normals like me.</p>

                                
                            
                                
                                    veky
 on Oct. 3, 2013, 10:32 a.m.

                                    <p>First, for me this is a three-liner (it can be two-liner if you squint, but no way it can be one-liner:). See other my solutions for pure one-liners.</p>

<p>Second, yeah, mostly fun/challenge, but also a way to teach people many interesting things about Python and math. For example, people often complain that Python has sum builtin, but not product. Here you can see that</p>

<pre class='brush: python'>exp(sum(map(log,s)))
</pre>

<p>is a very convenient way to write a product of elements in s.</p>

<p>Third, I am semiprofessional Pythonista. (That is, I write long-winded code for money.) So sometimes I just need a release valve. I find CheckIO ideal for that. If you want to look at professional code here, see Positronic Lamma. :-)</p>

<p>And fourth, yeah, I also find it funny that you can write one-liners even in Python. :-)</p>

                                
                            
                                
                                    oduvan
 on Oct. 4, 2013, 9:20 a.m.

                                    <p>I started think about to give each users his own tag-line. </p>

<p>Like "one-line coder". So no questions for each of your publications :)</p>

                                
                            
                                
                                    oduvan
 on Oct. 4, 2013, 9:24 a.m.

                                    <p>Because we are actually working on new profile page :)</p>

                                
                            
                                
                                    veky
 on Oct. 4, 2013, 10:06 a.m.

                                    <p>I reserve the right to write up to five lines despite the tagline. :-D</p>

                                
                            
                                
                                    oduvan
 on Oct. 4, 2013, 1:56 p.m.

                                    <p>:-D suuuure...</p>

                                
                            
                                
                                    yang.wang04
 on Sept. 21, 2016, 11:02 a.m.

                                    <p>I noticed that "from <strong>future</strong> import division" cannot be used under checkio IDE when I choose python version 2.7. checkio(4,4,4) will get result [90,90,90] without "from <strong>future</strong> import division". Don't know how to resolve this issue.</p>

                                
                            
                                
                                    veky
 on Sept. 21, 2016, 5:57 p.m.

                                    <p>A trivial way to resolve is to choose Py3.6. :-D</p>

<p>But seriously, it's a bug. Report it.</p>

                                
                            
                                
                                    yang.wang04
 on Sept. 22, 2016, 12:16 a.m.

                                    <p>Bug has been reported. Thanks a lot, veky. :)</p>

                                
                            
                                
                                    pherapont
 on June 11, 2019, 7:08 a.m.

                                    <p>Thank you! This is a very interesting solution.</p>
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