https://intellipaat.com/blog/why-can-templates-only-be-implemented-in-the-header-file/
Understand why C++ templates are typically implemented in header files due to compilation and linkage constraints, ensuring proper instantiation and code reuse.
header filetemplatesimplemented
https://www.mathworks.com/matlabcentral/fileexchange/57079-new-m-file-dynamical-documented-header?s_tid=blogs_rc_6
Download and share free MATLAB code, including functions, models, apps, support packages and toolboxes
matlab centralnewfiledynamicaldocumented
https://www.boost.org/doc/libs/1_75_0/libs/math/doc/html/math_toolkit/quat_header.html
header file