Hello, Using Eigen::Matrix for the state_type in odeint worked until a change in Eigen 3.3. Issue #194 [0] tracks the issue, including a recently merged patch [1] by one of the odeint maintainers to fix the issue.
The patch [1] depends on the internal namespace of Eigen. Is there any guidance from an Eigen expert on how this patch might be changed to work without depending on Eigen::internal? Sincerely, Luke [0] https://github.com/headmyshoulder/odeint-v2/issues/194 [1] https://github.com/headmyshoulder/odeint-v2/pull/237
