Write doc for positive power of a matrix with a semisimple zero eigenvalue.
Write doc for positive power of a matrix with a semisimple zero eigenvalue.

Zefz/eigen,toastedcrumpets/eigen,ROCmSoftwarePlatform/hipeigen,Zefz/eigen,pasuka/eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,Zefz/eigen,pasuka/eigen,ROCmSoftwarePlatform/hipeigen,ritsu1228/eigen,toastedcrumpets/eigen,TSC21/Eigen,TSC21/Eigen,pasuka/eigen,TSC21/Eigen,toastedcrumpets/eigen,ritsu1228/eigen,TSC21/Eigen,Zefz/eigen,ritsu1228/eigen,pasuka/eigen,toastedcrumpets/eigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,ritsu1228/eigen