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hreal(hx), hx a REAL matrix representing complex data with Hermitian

Keywords: time series, complex arithmetic
hreal(hx) computes the real part of the packed Hermitian matrix hx.  For
example, hreal(vector(1,2,3,4,5)) returns vector(1,2,3,3,2) and
hreal(vector(1,2,3,4,5,6)) returns vector(1,2,3 4,3,2).

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

See also hconj(), cconj(), himag(), creal(), creal().

Gary Oehlert 2003-01-15