Turned this into a science experiment and designed a test/workflow to rename the symbol MatrixXd -> MatrixPd in eigen and the results are promising at first gla

Turned this into a science experiment and designed a test/workflow to rename the symbol MatrixXd -> MatrixPd in eigen and the results are promising at first glance. See https://github.com/rhobimd-oss/shebe/blob/main/WHY_SHEBE.md#benchmark-c-symbol-refactoring-eigen-library https://github.com/rhobimd-oss/shebe/blob/main/WHY_SHEBE.md#...