symmetric
fun <T : Any, A : Ring<T>> MatrixBuilder<T, A>.symmetric(builder: (i: Int, j: Int) -> T): Matrix<T>
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Naive implementation of a symmetric matrix builder, that adds a SymmetricMatrixFeature tag. The resulting matrix contains full size^2 number of elements, but caches elements during calls to save builder calls. builder is always called in the upper triangle region meaning that i <= j