Changes

*The trace of an nxn square matrix is defined to be the sum of all main diagonal entries.

*The trace of an nxn square matrix is defined to be the sum of all main diagonal entries.

*Consider the matrix A with the elements <math>(a_{ij})</math>.

*Consider the matrix A with the elements <math>(a_{ij})</math>.

*Here trace of the matrix A is <math>tr(A)=a_{11}+a_{22}+...a_{nn}</math>=<math>sum_{i=1}^n a_{ii}</math>.Where <math>a_{ii}</math> denotes the entry on the <math>ith</math> row and <math>ith</math> column of A.

*Here trace of the matrix A is <math>tr(A)=a_{11}+a_{22}+...a_{nn}</math>=<math>\sum_{i=1}^n a_{ii}</math>.Where <math>a_{ii}</math> denotes the entry on the <math>ith</math> row and <math>ith</math> column of A.

*Now consider 3x3 matrix <math> A=\begin{pmatrix}

*Now consider 3x3 matrix <math> A=\begin{pmatrix}

a & b &c \\

a & b &c \\