48   double delta[3] = {0.0, 1.0, 2.0};  in TEST()  local
50   parameterization.Plus(x, delta, x_plus_delta);  in TEST()
93     double delta[3] = {1.0, 2.0, 3.0};  in TEST()  local
96     parameterization.Plus(x, delta, x_plus_delta);  in TEST()
102         EXPECT_EQ(x_plus_delta[j], x[j] + delta[k++]);  in TEST()
129   bool operator()(const T* x, const T* delta, T* x_plus_delta) const {  in operator ()()
131         delta[0] * delta[0] + delta[1] * delta[1] + delta[2] * delta[2];  in operator ()()
138       q_delta[1] = sin_delta_by_delta * delta[0];  in operator ()()
139       q_delta[2] = sin_delta_by_delta * delta[1];  in operator ()()
140       q_delta[3] = sin_delta_by_delta * delta[2];  in operator ()()
147       q_delta[1] = delta[0];  in operator ()()
148       q_delta[2] = delta[1];  in operator ()()
149       q_delta[3] = delta[2];  in operator ()()
158                                           const double* delta,  in QuaternionParameterizationTestHelper()  argument
166   param.Plus(x, delta, x_plus_delta);  in QuaternionParameterizationTestHelper()
201   double delta[3] = {0.0, 0.0, 0.0};  in TEST()  local
203   QuaternionParameterizationTestHelper(x, delta, q_delta);  in TEST()
217   double delta[3] = {0.24, 0.15, 0.10};  in TEST()  local
219     delta[i] = delta[i] * 1e-14;  in TEST()
224   q_delta[1] = delta[0];  in TEST()
225   q_delta[2] = delta[1];  in TEST()
226   q_delta[3] = delta[2];  in TEST()
228   QuaternionParameterizationTestHelper(x, delta, q_delta);  in TEST()
242   double delta[3] = {0.24, 0.15, 0.10};  in TEST()  local
243   const double delta_norm = sqrt(delta[0] * delta[0] +  in TEST()
244                                  delta[1] * delta[1] +  in TEST()
245                                  delta[2] * delta[2]);  in TEST()
248   q_delta[1] = sin(delta_norm) / delta_norm * delta[0];  in TEST()
249   q_delta[2] = sin(delta_norm) / delta_norm * delta[1];  in TEST()
250   q_delta[3] = sin(delta_norm) / delta_norm * delta[2];  in TEST()
252   QuaternionParameterizationTestHelper(x, delta, q_delta);  in TEST()