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> The determinant of a 2-by-2 matrix
The determinant of a 2-by-2 matrix
Formula
detA
The determinant of a 2-by-2 matrix A
a
vector a
b
vector b
c
vector c
d
vector d
Formula description
In linear algebra, the determinant is a value associated with a square matrix. It can be computed from the entries of the matrix by a specific arithmetic expression, while other ways to determine its value exist as well.
Calculator (
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a
b
c
d
detA
Precision
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Formula code
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detA = a*d-b*c
detA = a*d-b*c
detA = a*d-b*c
detA = a*d-b*c
detA = a*d-b*c
det(A)=\left|\begin{array}{cc} a & b \\ c & d \end{array}\right| = a d - b c
$detA = $a*$d-$b*$c
References
wikipedia:Determinant of a 2-by-2 matrices.
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