Object - Nsp general object
Mat - matrix of real or complex numbers
SpColMat - sparse matrix (real or complex numbers)
Smat - matrix of strings
IMat - matrix of integer numbers
Bmat - boolean matrix
Pmat - polynomial matrix
List - list of nsp objects
Cells - matrix of nsp objects
hash - hash tables
MaxMat - Max plus matrix
File - file data type
Serial - Container for nsp serialized object
SMio - String container for input ouput
SndFile - sound file data type
gdate - days representation
Umfpack - datatype for LU factorization of sparse matrices
Cholmod - datatype for Cholesky or LDLt factorization of sparse matrices