I wrote down Lagrange method, Newton method, and obtain results that differ by 2 (both incorrect). I use Ruby (for big int) and obtain result, equal to Lagrange's one in C++. After (long double) conversions all results are equal but incorrect.
Test from the problem (N^3) passed successfully. What am I doig wrong?
Problem 101
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See also the topics:
Don't post any spoilers
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- DNS
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- Location: Ukraine, Nikolaev
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quilan
- Posts: 182
- Joined: Fri Aug 03, 2007 11:08 pm
Re: Problem 101. What am I doing wrong?
I'm pretty sure all of the BOPs fit within long integers and don't need to be converted to double. In fact, the entire question can be done with integer math.
ex ~100%'er... until the gf came along.


- DNS
- Posts: 30
- Joined: Thu Oct 16, 2008 9:32 am
- Location: Ukraine, Nikolaev
Re: Problem 101. What am I doing wrong?
Thank you, Quilan.
But really I forget last 11th BOP. All my answers are correct now.
Mistakes, like I did, are repugnant-est-est-est.
But really I forget last 11th BOP. All my answers are correct now.
Mistakes, like I did, are repugnant-est-est-est.
2 x 2 = 4 = true
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bobfin
- Posts: 9
- Joined: Thu Oct 22, 2009 7:06 am
Re: Problem 101
Hi, I'm experiencing some problems with problem 101. My program correctly calculates the FITs for the n^3 sequence but doesn't pass on the tenth degree polynomial. Can anyone confirm the values of my first three FITs:
1
1365
130813
1
1365
130813
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bobfin
- Posts: 9
- Joined: Thu Oct 22, 2009 7:06 am
Re: Problem 101
No need for a reply to my earlier post. Found my error, my FIT values were Java doubles and I was incurring a rounding error. Problem now solved.
- kenbrooker
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- Location: Northern California, USA
Problem 101
Asked for "advice" @ PE.net bottom Page 8 for Problem 101, as glasshopper, on March 13th...
If anyone would care to reply there or, via PM, here @ PE.chat?
Thanks in advance...
If anyone would care to reply there or, via PM, here @ PE.chat?
Thanks in advance...
"Good Judgment comes from Experience;
Experience comes from Bad Judgment..."

Experience comes from Bad Judgment..."

- kenbrooker
- Posts: 187
- Joined: Mon Feb 19, 2018 3:05 am
- Location: Northern California, USA
Re: Problem 101
kenbrooker wrote: Thu Mar 29, 2018 11:15 pm Asked for "HELP!" @ PE.net top of Page 9 for Problem 101, as glasshopper,
If anyone would care to reply there or, via PM, here @ PE.chat?
Thanks in advance...
"Good Judgment comes from Experience;
Experience comes from Bad Judgment..."

Experience comes from Bad Judgment..."

- kenbrooker
- Posts: 187
- Joined: Mon Feb 19, 2018 3:05 am
- Location: Northern California, USA
Re: Problem 101
Help received from dawghaus4 and
Mission Accomplished and
reported on PE.net;
Thankyou...
Mission Accomplished and
reported on PE.net;
Thankyou...
"Good Judgment comes from Experience;
Experience comes from Bad Judgment..."

Experience comes from Bad Judgment..."
