Full Rank Difference

I need to adopt full rank difference function that maps a ring element to a matrix in my recently experiments, but I can’t find functions like this.
So I want to know if there are functions like it in the library and where they are.
Thank you a lot in advance.

The functions that are exposed in OpenFHE, such as EvalSumRows and EvalSumCols, can be used to build matrix capabilities, but there are no matrix-level capabilities exposed in OpenFHE itself. There is a separate effort FHERMA that hosts FHE challenges for higher-level operations. Please see GitHub - fairmath/polycircuit: Polycircuit - an FHE components library, build via FHERMA competitions to view the solutions for prior challenges.