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goc3

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Halliburton Drill Bits & Services

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Materials Scientist / Metallurgist / Mechanical Engineer
Professional Interests: Data automation, synthesis, and analysis

Professional Interests

Data automation, synthesis, and analysis

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goc3 submitted Solution 901447 to Problem 42854. Crunch that matrix!

on 3 Jun 2016 at 16:09

goc3 submitted Solution 901434 to Problem 42865. Find the sum of n squares

on 3 Jun 2016 at 15:57

goc3 submitted a Comment to Problem 42754. Odd elimination

Similar to, though simpler than, James's decimation problem: https://www.mathworks.com/matlabcentral/cody/problems/1092-decimation.

on 25 Feb 2016

goc3 submitted Solution 838223 to Problem 42753. Why?

on 25 Feb 2016

goc3 submitted Solution 832963 to Problem 42665. sort matrix

on 19 Feb 2016

goc3 submitted Solution 832665 to Problem 42732. Average Grade

on 19 Feb 2016

goc3 submitted a Comment to Solution 830802

Same problem as noted in the other comment. You get the correct P_avg here but not NP because the sprint is so short that the 30-second rolling average (applied twice) is rounded to the same answer. Unrounded P_avg answers for this routine and the correct routine are 131.3638 and 131.1111, respectively. Given that answers are being rounded, it may look wrong since the P_avg calculation appears to be right (due to rounding) while NP was wrong when both were actually wrong.

on 18 Feb 2016

goc3 submitted a Comment to Solution 830776

Note in the last paragraph of the explanation: "You will be provided with the 30-second rolling average power data set (vector)." In essence, your solution is calculating the 30-second rolling average of a 30-second rolling average data set.

on 18 Feb 2016

goc3 submitted Solution 820347 to Problem 561. Find the jerk

on 4 Feb 2016

goc3 submitted a Comment to Problem 1259. It's race time again! Write a function that is at least twice as fast as the test suite call of repmat().

This doesn't seem to be possible anymore: http://stackoverflow.com/questions/28722723/matlab-bsxfun-no-longer-faster-than-repmat. Any chance of updating the problem with looser time tolerances?

on 22 Jan 2016

goc3 submitted Solution 812137 to Problem 387. drowsy?

on 22 Jan 2016