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 MS-DOS 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.