Open the Autodesk Autocad license file. Click the Test button. Click on the Activate button. In the autocad key dialog box, click on the button Activate. The activation code will be displayed on the screen. Enter the activation code and click the Activate button. Enjoy Autocad 2013 Crack.Q: Symmetrization of a matrix What is the general method to symmetrize a matrix? I know that if $A$ is symmetric, then $\frac{A+A^T}{2}$ is symmetric, but how can we write $A^T$ and/or $\frac{A+A^T}{2}$ as a matrix? A: There are two cases. If the matrix has an orthonormal basis where it is a diagonal matrix, then diagonalising it will give you a diagonal matrix. If the matrix is not a diagonal matrix, a general transformation can be found. If the matrix is square and $A$, $A^T$ have the same determinant, then $A + A^T$ has the same determinant, so $(A + A^T) / 2$ has the same determinant as $A$, and the eigenvalues of $(A + A^T) / 2$ are half of the eigenvalues of $A$, so it is a diagonal matrix. If the matrix is not square, then take $T$ such that $A^T = TAT$, then it is diagonal with diagonal entries $(TAT)_{ii} = A_{ii}^T = A_{ii}$. A PCR test for detection of Mycobacterium bovis infection in cattle. A polymerase chain reaction (PCR) method was developed to detect Mycobacterium bovis infection in cattle. A ‘universal’ primer set was designed based on the conserved regions of 16S rRNA and 23S rRNA genes of M. bovis and closely related species. The primer set was able to detect M. bovis in both pure culture and in tissue samples. Among the 46 cattle tissue samples tested, there were 22 positive and 24 negative samples. Six cattle were confirmed M. bovis positive with the PCR assay and two positive samples from three cattle were also positive by culturing method. The PCR assay provides a sensitive and rapid way