Dual basis
= Dual basis
{wiki}
= Dual bases
{synonym}
For a basis $e_1,\ldots,e_n$ of $V$, its dual basis $e_1^*,\ldots,e_n^*$ is characterized by $e_i^*(e_j)=\delta_{ij}$.
= Dual basis
{wiki}
= Dual bases
{synonym}
For a basis $e_1,\ldots,e_n$ of $V$, its dual basis $e_1^*,\ldots,e_n^*$ is characterized by $e_i^*(e_j)=\delta_{ij}$.