Algebra
Determinant Calculator
Lets users solve and check determinant instantly with formula, steps and examples — no manual math.
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Your result
Determinant
-1
det = -1 (invertible).
Invertibility
Invertible
Matrix size
3×3
About this calculator
The determinant is a scalar summarizing a square matrix; it's nonzero exactly when the matrix is invertible. Computed by cofactor expansion, supporting any size.
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