**20 July, 2008**

This is the version of the Newmat matrix package currently under development. This version is checked with the main C++ compilers, but the checking is not as detailed as with a release version. The full documentation is at newmat11 documentation.

I suggest you use newmat11 in preference to newmat10.

Changes in this version include:

It works with Borland Builder version 6, 8; Microsoft Visual C++ 6,7,8; Open Watcom 1.7a; Gnu version 3, 4 and Intel for Windows & Linux compilers 9, 10.

Options and work-arounds for older compilers are being removed.

You can enter values from an integer array with statements like

Matrix A(3,2); int a[] = { 11,12,21,22,31,33 }; A << a;There is a new matrix type

SquareMatrix. You can use this where you know a matrix is square. The only place where the information that a matrix is used is in the Kronecker productKP(A,B). IfAis band andBis any square matrix type (i.e. typeSquareMatrixor band, triangular, symmetric or diagonal) the result is band. IfBis typeMatrixthen the result is of typeMatrix. Apart from this it may be worth using theSquareMatrixtype to improve readability of a program and to make sure that a matrix that is intended to be square really is square.There is a new routine for carrying out cross products of ColumnVectors or RowVectors of length 3 and new routines for updating a triangular matrix derived from a Cholesky decomposition.

Interfacing with old C functions involving one and two dimensional arrays is simplified.

Additional QR functions, extend_orthogonal function.

Lower-case versions of functions.

You can use the manipulators

scientificandfixedin the matrix output expressions.