ANSYS, Inc. Release Notes
The new APDL Math feature extends the APDL scripting environment of Mechanical APDL to give you access to the powerful matrix manipulation routines in the Mechanical APDL product, including its fast and efficient solvers.
APDL Math provides access to matrices and vectors from the .FULL, .EMAT, .MODE and .SUB files, as well as other sources, so that you can read them in, manipulate them, and write them back out or solve them directly. The new functionality augments the vector and matrix operations in the standard APDL scripting environment. Both dense matrices and sparse matrices can be manipulated using APDL Math.
For more information, see "APDL Math" in the ANSYS Parametric Design Language Guide.