Problem 43027. Upper Matrix in LU Decompositon

Solution 1217223

Submitted on 21 Jun 2017 by Jean-Marie Sainthillier

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Test	Status	Code Input and Output
1	Pass	filetext = fileread('UpperMat.m'); assert(isempty(strfind(filetext, 'triu')),'triu() forbidden')
2	Pass	x = [2 4 -2; 4 -2 6; 6 -4 2] ; y_correct = [2 4 -2; 0 -10 10; 0 0 -8]; assert(isequal(UpperMat(x),y_correct))
3	Pass	x = [15 7 5; 2 4 6; 0 9 10] ; y_correct = [15 7 5; 0 46/15 16/3; 0 0 -130/23]; assert(abs(sum(sum(UpperMat(x)-y_correct)))<0.01)

Test

Status

Code Input and Output

Pass

filetext = fileread('UpperMat.m'); assert(isempty(strfind(filetext, 'triu')),'triu() forbidden')

Pass

x = [2 4 -2; 4 -2 6; 6 -4 2] ; y_correct = [2 4 -2; 0 -10 10; 0 0 -8]; assert(isequal(UpperMat(x),y_correct))

Pass

x = [15 7 5; 2 4 6; 0 9 10] ; y_correct = [15 7 5; 0 46/15 16/3; 0 0 -130/23]; assert(abs(sum(sum(UpperMat(x)-y_correct)))<0.01)

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