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March 21, 2013, 22:18 |
L1,L2,L_infinity error
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#1 |
New Member
Join Date: Mar 2013
Posts: 14
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Hi, I am confused with the definition of the three errors. Are they defined as follows?
L1 = sum(abs(uex-u))*dx; L2 = sqrt(dx*sum((uex-u)^2)); L_infinity = max(abs(uex-u)); Is L_infinity always larger than the other two errors? Last edited by Wenjun; March 21, 2013 at 22:20. Reason: typo |
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March 22, 2013, 05:26 |
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#2 | |
Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,760
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Quote:
Then, you can define the norm in average or not, you can find some useful note in the book of LeVeque or any other book on numerical analysis. L_infinity becomes the more restrictive |
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March 22, 2013, 05:31 |
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#3 |
New Member
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Ok , thanks for your advice!
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