in some documentations on the DLL, two files are referred to: LIB file and DLL file. The LIB file contain the exported function 's name and address; and the DLL file which contain the functions and data. My question and confusion is that: 1)the LIB file is necesary? 2)and the documentation also said that the LIB file and DLL file must be with the EXE file together, When the EXE(opensees) is distributed.3) the above two files is needed, when the EXE(opensees) is compiled.But in fact the two files don't exist at the moment.
4) Must i provide the tangent stiffness of the material ? secant stiffness OK?
Best regards,
Alexli
