Matrix Calculator
Perform matrix operations, calculate determinants, find inverse matrices, and solve linear equations
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Matrix A
Matrix B
Results
Select an operation and enter matrix values to see results.
Matrix Operations Guide
Addition & Subtraction
Matrices must have the same dimensions. Add/subtract corresponding elements.
[a + b, c + d; e + f, g + h]
Multiplication
Number of columns in A must equal number of rows in B.
C[i,j] = Σ(A[i,k] × B[k,j])
Determinant
Only defined for square matrices. Measures matrix "volume".
det(2×2) = ad - bc
Inverse
Only exists if determinant ≠ 0. A × A^-1 = I
A^-1 = (1/det(A)) × adj(A)
Transpose
Flip matrix over its diagonal. Rows become columns.
A^T[i,j] = A[j,i]
Eigenvalues
Special scalars λ where Av = λv for some vector v.
det(A - λI) = 0