18 reputation
4
bio website
location Los Angeles, CA
age
visits member for 1 year, 5 months
seen Aug 27 '13 at 23:14

Long time reader of the stack overflow family.


Aug
18
awarded  Popular Question
Oct
31
awarded  Scholar
Oct
31
accepted Graph Theory Shortest Path Problem via Matrix Operations in MatLab
Oct
29
comment Graph Theory Shortest Path Problem via Matrix Operations in MatLab
thanks for the information. The power of matrices is what I was looking for and your explanation and code has helped. Can you explain why you want to set the main diagonals to zero? They contain valid paths.
Oct
28
asked Graph Theory Shortest Path Problem via Matrix Operations in MatLab
Oct
25
comment Matlab Matrix Multiplication Calculate Significant Figures
Thanks for the response and detailed explanation! I have a some-what good idea of what you are saying get I need the condition number, which will give me the a good enough estimate to the digits of precision (I like your wording better) However, when it comes to finding the conditional number, I am lost. I added a test case to my original post. When computing z I need to get a number close to 15 (depending on how liberal I am with rounding up to 16 or down to 14, etc). Doing the conditional math on the value of x keeps returning 1. I may be confused on the upper bound case.
Oct
25
revised Matlab Matrix Multiplication Calculate Significant Figures
Added test case
Oct
25
awarded  Student
Oct
25
awarded  Editor
Oct
25
revised Matlab Matrix Multiplication Calculate Significant Figures
Made question more clear.
Oct
25
asked Matlab Matrix Multiplication Calculate Significant Figures