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Matrix calculator
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.
working...
examples
example 1:ex 1:
Find the inverse of the matrix
$ A = \left[ \begin{array}{cc}
-3 & 2 \\
-5 & 4
\end{array} \right]$.
example 2:ex 2:
Find the determinant of the matrix
$ A = \left[ \begin{array}{cc}
4 & 8 & 5 \\
-3 & 2 & 6 \\
11 & -3 & 5
\end{array} \right]$.
example 3:ex 3:
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]$.
example 4:ex 4:
Find the eigenvalues and eigenvectors of the matrix
$ A = \left[ \begin{array}{cc}
2 & 2 \\
5 & -1
\end{array} \right]$.
example 5:ex 5:
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: | $ \left[ \begin{array}{cc} -7 & 1/4 \\ -1.3 & -2/5 \end{array} \right] $ | type |
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2: You don't need to enter zeros.
| Example: To input matrix: | $ \left[ \begin{array}{ccc} 0 & 1 & 0 \\ -1 & 0 & 0 \\ 0 & 0 & 2/3 \end{array} \right] $ | type |
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3: You can copy and paste matrix from excel in 3 steps.
| Step 1: Copy matrix from excel | Step 2: Select upper right cell | 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 | and click delete |
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Please tell me how can I make this better.
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