<Next version of Ox>
Ox: Fixes and new features in version 1.04
New features

Version for Hewlett Packard workstations.

arma0(), armavar(), diff0pow(), pacf(), periodogram(), quantilec(),
quantiler(), sqr(), thinc(), thinr(), trunc() functions.

Simula class: add RMSE in report.

Some support for computation with complex numbers:
cabs(), cdiv(), cmul(), csqrt().

Roots of polynomials: polyroots() function.

Addition of argument to return logarithm of (absolute value of) determinant
in solvetoeplitz.
Fixed bugs in version 1.04:

The acf function returns a matrix of zeros.

PcNaiveDgp::Print() reports MVN with variance I, eventhough Sigma is used.

Elements in a row of a matrix constants must be separated by a comma,
a space is not sufficient. Consider e.g. <1 1 1>,
which creates the matrix <3>, whereas <1,1,1> creates a 1 x 3
matrix with minus ones.

The toeplitz function goes wrong when the first argument is a column vector,
but works when it is a row vector.

Double constants greater in absolute value than 2^31 go wrong in the
MSDOS version (oxl.exe) owing to a comparison being optimized away by
the compiler. So e.g. print(1e9) works correctly (printing 1e+009),
whereas print(1e10) fails (printing 2147483647). This did not affect
the Windows version.