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Determinant Calculator
Determinant of a 3×3 matrix.
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Determinant
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Determinant of a 3×3 matrix.
Determinant Estimator
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0
💡 Tip: det = a(ei – fh) – b(di – fg) + c(dh – eg).
How It Works
Key concepts behind this calculator
1
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2
Calculate
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3
Review
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4
Adjust
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Quick Reference Guide
Determinant Quick Guide
Typical values for reference.
| a11 | a12 | a13 | det |
|---|---|---|---|
| 2 | 1 | 3 | 25.000 |
| 1 | 0 | 0 | 1.000 |
| 1 | 2 | 3 | 0.000 |
| 2 | 0 | 0 | 24.000 |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Determinant Calculator FAQ
Answers to common questions about this calculator.
A number that tells you whether a matrix is invertible.
Cofactor expansion along a row.
The matrix is singular.
The volume scaling factor.