L2 inner product
= L2 inner product
{c}
{title2=$\langle f,g\rangle_{L^2}=\int f\overline g$}
The L2 inner product is the <inner product> $\langle f,g\rangle=\int f\overline g\,d\mu$ on <L2 space>. Its induced <norm> is the <L2 norm>, and the <mass matrix> represents it in a <finite element> basis.