关于本计算器
Determinant of 2×2 and 3×3 matrices with trace shown.
矩阵行列式
2×2与3×3行列式。
输入计算参数
计算结果摘要
行列式 · 2×21
矩阵大小2×2
迹2
常见问题
2×2 formula?
ad − bc for [[a,b],[c,d]].
Zero determinant?
Singular matrix — no inverse exists.
3×3 method?
Sarrus/cofactor expansion over the first row.