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hprdhj(hx1 [, hx2]), hx1 and hx2 REAL matrices representing complex data
  with Hermitian symmetry

Keywords: time series, complex arithmetic
hprdhj(hx1, hx2) computes the element-wise complex product of elements
in the columns of hx1 and hconj(hx2), considered as complex matrices in
packed Hermitian form.  The result is also a complex matrix in packed
Hermitian form.

If hx1 or hx2 represents a single complex series (has 1 column), that
series is multiplied by all the series in the other arguments.  For
example, if hx1 is m by 1 and hx2 is m by 3, hprdhj(hx1,hx2) is
equivalent to hprdhj(hconcat(hx1,hx1,hx1),hx2).

hprdhj(hx) is equivalent to hprdhj(hx,hx) and produces an packed
Hermitian output matrix with the squared moduli of the elements of hx,
considered as complex numbers, in the real part of the result, with
zeros in the imaginary part.

See topic 'complex' for discussion of complex matrices in MacAnova.

See also hprdh(), hprdhj(), hconj().

Gary Oehlert 2003-01-15