Hawk

@Sawarnik I checked out the new solution...he uses some advanced thoerems, which I hadn't heard of before, his solution is much more better looking than r9m's...My vote goes to it...

@Sawarnik yes...he did...but...I didn't find that reliable...I checked the whole thing in the expanded form...and found error....

@Sawarnik really? not even on the line we found out?

does it have any mistake?

@Sawarnik not very minutely...but it looks good...

I really like the other solution...that is my choice...Really nice solution...

@Sawarnik ok...let me see...

@Sawarnik no...the language was confusing(maybe due to my extreme feeling tense)...I didn't even approach the problem...and...If I had written the first statement line...the rest of the solution would flow out naturally...

@Sawarnik If I had approached the problem at the exam, I would have easily done that

@Sawarnik No...I feel indifferent...actually...I don't feel anything now...

@Sawarnik actually...getting upset drove me away for so long...and to get myself back on track...I started doing some maths...

@Sawarnik A little of calculus I think...

@Sawarnik no, did not left, was a little upset after seeing that easy solution...reading nowadays to improve things...might be joining back at the end of the month maybe...

@Sawarnik no...I couldn't make any approach...

@Sawarnik Just ask as you ask...don't name it 'ISI QUESTION' or something like that...

@Sawarnik yes...I suppose...

@Sawarnik No such restriction was given...how can one track that?

@Sawarnik ..

@Sawarnik The same reason...

back

brb...

@Sawarnik He says..the paper was very easy..

@Sawarnik after r9m's comments...I really feel myself very stupid!

@Sawarnik could you solve it?

@Sawarnik seems so...

@Sawarnik I couldn't understand heads or tails of it...

@Sawarnik please tell me..what you feel of the paper!

@Sawarnik tell me about you...

@Sawarnik do you feel it scary?

@Sawarnik do you..like r9m feel the paper easy?

@Sawarnik 2 hrs...

@Sawarnik It was doable for me...I messed up the calculation...so I couldn't complete

@Sawarnik tell me about you...

@Sawarnik yes...

@Sawarnik yes...quite easy...

@Sawarnik To the 3rd one?

@Sawarnik Which problem?

@Sawarnik seeing what?

@Sawarnik seen?

@DanielFischer you mean, triangulation of a polygon?

@DanielFischer I think, I need to use step function over here...

@Sawarnik Yes...was reading a few things...

@DanielFischer No, I couldn't show anything, I just verified it for a few cases, and found to be true...

@Sawarnik Hi!

@DanielFischer @robjohn please help out with this problem. I am stuck on this for quite some time, math.stackexchange.com/questions/800327/…

@r9m ok...thanks

@r9m ok...tell me...

@r9m translating to the $f$ part...

@r9m Can you please put it altogether?

@r9m What has this to do with $f(P)$?