Created
February 7, 2021 09:07
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| function [retval] = isPositiveDefinit(A) | |
| FLAG = 1; | |
| IS_SYMMETRIC = isequal(A,A.'); | |
| if (IS_SYMMETRIC == 0) | |
| retval = 0; | |
| else | |
| d = eig(A); | |
| for i=1:size(d) | |
| if (d(i) < 0) | |
| FLAG = 0; | |
| end | |
| end | |
| retval = FLAG; | |
| end | |
| endfunction |
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