CppAD: A C++ Algorithmic Differentiation Package
20171217
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sparsity for sum_i f_i(x)^{(2)} does not change so can cache it
Definition at line 273 of file checkpoint.hpp.
Referenced by CppAD::checkpoint< Base >::forward(), CppAD::checkpoint< Base >::rev_sparse_hes(), and CppAD::checkpoint< Base >::set_hes_sparse_set().