https://www.intel.com/content/www/us/en/docs/onemkl/developer-reference-fortran/2025-2/tpttf.html
?tpttf
Copies a triangular matrix from the standard packed format (TP) to the rectangular full packed format (TF).
https://www.intel.com/content/www/us/en/docs/onemkl/developer-reference-c/2024-0/tpttf.html
?tpttf
Copies a triangular matrix from the standard packed format (TP) to the rectangular full packed format (TF).