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Ox: Fixes and new features in version 1.06
New features and remarks, version 1.06

FastMath enhancements. Several matrix operations have been
speeded up significantly. These optimizations do require
more memory though. By default FastMath mode is active, but if
you run out of memory, you can switch it off using the f
command line switch. Affected operations are: matrix multiplication
(especially matrix crossproduct), determinant, ols2c, invertsym,
correlation, variance.

olsc, olsr, ols2c, ols2r functions. The first two use the QR
decomposition with pivoting. The last two use the Choleksi decomposition
of X'X, without pivoting.

When printing a row vector which spans more than one line of output,
labelling of elements will only be done once at the top.

Contrary to what the documentation says, eigenvalues from a general
matrix are not sorted. Those of a symmetric matrix are.
Fixed bugs in version 1.06

Vertical concatenation ( operator) does not work correctly when
using unequally sized matrices (the wrong parts are zeroed out).
Horizontal concatenation is fine.

Deleting something twice, or a variable which wasn't assigned to
could lead to a crash.