Updating from previous versions

This is a minor upgrade on newmat08 to correct an error in SVD, improve compatibility with the standard, improve performance and add some new functions. You should upgrade.

• Boolean, TRUE, FALSE are now bool, true, false. See customising if your compiler supports the bool class.
• ReDimension is now ReSize.
• The simulated exception package has been updated.
• Operators ==, !=, +=, -=, *=, |=, &= are now supported as binary matrix operators.
• A+=f, A-=f, A*=f, A/=f, f+A, f-A, f*A are supported for A matrix, f scalar.
• Fast trigonometric transforms.
• Reverse function for reversing order of elements in a vector or matrix.
• IsSingular function.
• An option is included for defining namespaces.
• Dummy inequality operators are defined for compatibiity with the STL.
• The row/column classes in newmat3.cpp have been modified to improve efficiency and correct an invalid use of pointer arithmetic. Most users won't be using these classes explicitly; if you are, please contact me for details of the changes.
• Matrix LU decomposition rewritten (faster for large arrays).
• The sort function rewritten (faster).
• The documentation files newmata.txt and newmatb.txt have been amalgamated and both are included in the hypertext version.
• Some of the make files reorganised again.

If you are upgrading from newmat07 note the following:

• .cxx files are now .cpp files. Some versions of won't accept .cpp. The make files for Gnu and AT&T link the .cpp files to .cxx files before compilation and delete the links after compilation.
• An option in include.h allows you to use compiler supported exceptions, simulated exceptions or disable exceptions. Edit the file include.h to select one of these three options. Don't simulate exceptions if you have set your compiler's option to implement exceptions.
• New QR decomposition functions.
• A non-linear least squares class.
• No need to explicitly set the AT&T option in include.h.
• Concatenation and elementwise multiplication.
• A new GenericMatrix class.
• Sum function.
• Some of the make files reorganised.

If you are upgrading from newmat06 note the following:

• If you are using << to load a Real into a submatrix change this to =.

If you are upgrading from newmat03 or newmat04 note the following

• .hxx files are now .h files
• real changed to Real
• BOOL changed to Boolean
• CopyToMatrix changed to AsMatrix, etc
• real(A) changed to A.AsScalar()

The current version is quite a bit longer that newmat04, so if you are almost out of space with newmat04, don't throw newmat04 away until you have checked your program will work under this version.

See the change history for other changes.

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