Details

Type: Improvement

Status: Closed

Priority: Minor

Resolution: Won't Fix

Affects Version/s: None

Fix Version/s: None

Component/s: Math

Labels:None
Description
Matrix QR decomposition and appropriate determinant calculator
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I've made an implementation according to http://en.wikipedia.org/wiki/QR_decomposition but I still have a problem: I get an error caused by storing doubles in memory and resulting in calculations error(actually taking square root when calculating vector norm). So we normally get noninteger determinant for matrix of integers(still it's close to desired value)... This can actually result in significant error for big matrix