Detailed Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Problem:[10] The trace, or sum of diagonal terms, for the Hesse matrix is equal to this operator, which is equivalent to the divergence of the gradient and is symbolized del squared.
Solution:
Science