Ciro Santilli $£ Sponsor €¥ 中国独裁统治 China Dictatorship 新疆改造中心、六四事件、法轮功、郝海东、709大抓捕、2015巴拿马文件 邓家贵、低端人口、西藏骚乱
Like the matrix representation of a bilinear form, it is a matrix, but now the matrix has to be a symmetric matrix.
We can then immediately see that the matrix is symmetric, then so is the form. We have:
But because is a scalar, we have: