| ematmul | External matrices operations. |
| extmat | External matrices operations. |
| extmat.ncol | External matrices operations. |
| extmat.nrow | External matrices operations. |
| is.extmat | External matrices operations. |
| propack.svd | Generic Singular Value Decomposition of a Matrix |
| trlan.eigen | Generic Singular Value Decomposition of a Matrix |
| trlan.svd | Generic Singular Value Decomposition of a Matrix |