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BUILT-IN MATHEMATICA SYMBOL
IdentityMatrix
IdentityMatrix[n]
gives the n
n identity matrix.
Details and Options
- IdentityMatrix[{m, n}] gives the mn identity matrix.
- IdentityMatrix by default creates a matrix containing exact integers.
- The option WorkingPrecision can be used to specify the precision of matrix elements.
- IdentityMatrix[n, SparseArray] gives the identity matrix as a SparseArray object.
Examplesopen all
Basic Examples (1)
Construct a 3×3 identity matrix:
| In[1]:= |
Out[1]//MatrixForm= | |
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