Cody

Problem 1812. Tridiagonal

Solution 2135594

Submitted on 21 Feb 2020 by Jiahang Li
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Test Suite

Test Status Code Input and Output
1   Pass
a = 1; b = 2; c = 3; n = 5; y_correct = [ 2 3 0 0 0; 1 2 3 0 0; 0 1 2 3 0; 0 0 1 2 3; 0 0 0 1 2]; assert(isequal(tridiag(a, b, c, n),y_correct))

ans = 2 3 0 0 0 1 2 3 0 0 0 1 2 3 0 0 0 1 2 3 0 0 0 1 2
2   Pass
a = 9; b = 5; c = -17; n = 3; y_correct = [ 5 -17 0 ; 9 5 -17 ; 0 9 5 ]; assert(isequal(tridiag(a, b, c, n),y_correct))

ans = 5 -17 0 9 5 -17 0 9 5
3   Pass
a = 4; b = -1; c = 8; n = 4; y_correct = [-1 8 0 0; 4 -1 8 0; 0 4 -1 8; 0 0 4 -1]; assert(isequal(tridiag(a, b, c, n),y_correct))

ans = -1 8 0 0 4 -1 8 0 0 4 -1 8 0 0 4 -1
4   Pass
a = 11; b = 21; c = 30; n = 5; y_correct = [21 30 0 0 0; 11 21 30 0 0; 0 11 21 30 0; 0 0 11 21 30; 0 0 0 11 21]; assert(isequal(tridiag(a, b, c, n),y_correct))

ans = 21 30 0 0 0 11 21 30 0 0 0 11 21 30 0 0 0 11 21 30 0 0 0 11 21

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