Planeman
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Next privilege 250 Rep.
 Jul2 awarded Curious Nov14 awarded Popular Question Mar4 awarded Notable Question Feb6 awarded Nice Question Oct30 awarded Popular Question Dec16 awarded Popular Question Nov24 accepted Symmetric Matrix without $LDL^T$ Decomposition Nov24 comment Symmetric Matrix without $LDL^T$ Decomposition Thank you both, it makes sense now. I was just not clear before on the use of the permutation matrix. Nov24 accepted Proving theta complexity for floor function Nov24 awarded Editor Nov24 comment Symmetric Matrix without $LDL^T$ Decomposition So even if you need to use a permutation matrix to find the final result you don't consider that a decomposition of the original matrix? Nov24 comment Symmetric Matrix without $LDL^T$ Decomposition Sorry about that I was mixing up my questions. Nov24 revised Symmetric Matrix without $LDL^T$ Decomposition edited title Nov24 comment Combinatorial proof of a binomial coefficient summation. @ Moron: I do understand that in learning it isn't always beneficial to be given the answer up front but in this case I had already been looking at this for several hours and the setup for the combinatorial proof is what was key to me making past that. Everything in the remaining cases is counting that I was already doing but I just couldn't connect it all. Nov24 asked Symmetric Matrix without $LDL^T$ Decomposition Nov23 accepted Combinatorial proof of a binomial coefficient summation. Nov23 comment Combinatorial proof of a binomial coefficient summation. Wow that was a lot thank you. Give me a little time to process, usually this stuff comes back on tests so I want to understand it. Nov23 awarded Commentator Nov23 comment Combinatorial proof of a binomial coefficient summation. Sorry if I'm being really naive but I don't see where you get that from the equation above. Nov23 asked Combinatorial proof of a binomial coefficient summation.