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real axis

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real axis [′rēl ′ak·səs]
(mathematics)
The horizontal axis of the Cartesian coordinate system for the euclidean or complex plane.
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[pi]] a reconstruction in the form of a sampling series that is uniformly convergent on compact subsets of the real axis and uniformly bounded on the whole real axis is not possible in general if the signals are sampled equidistantly at Nyquist rate.
Global and local approximation behavior of reconstruction processes ... by Boche, Holger; Monich, Ullrich J. / Sampling Theory in Signal and Image Processing
Thus, in the event that Im([sigma]) < 0, we can obtain trajectories in either the [delta]-plane or v-plane by reflection about the real axis of the corresponding trajectories for [bar.
On the eigenstructure of a Sturm-Liouville problem with an impedance ... by McCartin, Brian J. / Global Journal of Pure and Applied Mathematics
A Democrat declared the real axis of evil was Bush, Cheney and Rumsfeld, who had "misled the American people about Iraq and into world isolation".
`Treats the war as if it is led by Clint Eastwood' by Huddersfield Daily Examiner (Huddersfield, England)
 
 
 
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