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22 #ifndef __MLPACK_CORE_OPTIMIZERS_SGD_TEST_FUNCTION_HPP
23 #define __MLPACK_CORE_OPTIMIZERS_SGD_TEST_FUNCTION_HPP
28 namespace optimization {
48 double Evaluate(
const arma::mat& coordinates,
const size_t i)
const;
51 void Gradient(
const arma::mat& coordinates,
53 arma::mat& gradient)
const;