2 × 2 determinant
Calculate 2 × 2 determinant and see the working behind your result.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
det([[a,b],[c,d]]) = ad−bc
Variables & units
- Top left · a
- Numeric value · minimum -1000000, maximum 1000000
- Top right · b
- Numeric value · minimum -1000000, maximum 1000000
- Bottom left · c
- Numeric value · minimum -1000000, maximum 1000000
- Bottom right · d
- Numeric value · minimum -1000000, maximum 1000000
Worked example
The determinant of [[3,2],[1,4]] is 10.
Assumptions
This tool is restricted to a 2 × 2 real matrix.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
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