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/external/ceres-solver/internal/ceres/
H A Dlocal_parameterization_test.cc243 const double delta_norm = sqrt(delta[0] * delta[0] + local
247 q_delta[0] = cos(delta_norm);
248 q_delta[1] = sin(delta_norm) / delta_norm * delta[0];
249 q_delta[2] = sin(delta_norm) / delta_norm * delta[1];
250 q_delta[3] = sin(delta_norm) / delta_norm * delta[2];

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