This matrix calculator computes determinant , inverses, rank, characteristic polynomial,
eigenvalues and eigenvectors.
It decomposes matrix using LU and Cholesky decomposition.
The calculator will perform symbolic calculations whenever it is possible.
Statistics and probability
examples
Find the inverse of the matrix
$ A = \left[ \begin{array}{cc}
-3 & 2 \\
-5 & 4
\end{array} \right]$.
Find the determinant of the matrix
$ A = \left[ \begin{array}{cc}
4 & 8 & 5 \\
-3 & 2 & 6 \\
11 & -3 & 5
\end{array} \right]$.
Find the rank of the matrix
$ A = \left[ \begin{array}{cc}
-1 & 2 & 4 & 1 \\
5 & 3 & 1 & 1 \\
3 & 7 & 9 & 3
\end{array} \right]$.
Find the eigenvalues and eigenvectors of the matrix
$ A = \left[ \begin{array}{cc}
2 & 2 \\
5 & -1
\end{array} \right]$.
Find the characteristic polynomial of the matrix
$ A = \left[ \begin{array}{cc}
1 & 1 & 2 \\
1 & 2 & 1 \\
0 & -1 & -1
\end{array} \right]$.
Tips on how to input matrix ?
1: Input matrix starting from the upper lefthand corner.
Example: To input matrix:
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$ \left[ \begin{array}{cc}
-7 & 1/4 \\
-1.3 & -2/5
\end{array} \right] $
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type
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2: You don't need to enter zeros.
Example: To input matrix:
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$ \left[ \begin{array}{ccc}
0 & 1 & 0 \\
-1 & 0 & 0 \\
0 & 0 & 2/3
\end{array} \right] $
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type
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3: You can copy and paste matrix from excel in 3 steps.
Step 1: Copy matrix from excel
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Step 2: Select upper right cell
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Step 3: Press Ctrl+V
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4: You don't need to use scroll bars, since the calculator will automatically remove empty rows
and columns.
5: To delete matrix
Select whole matrix
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and click delete
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