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[haf-pleyn, hahf-] /ˈhæfˌpleɪn, ˈhɑf-/
noun, Mathematics
the part of the plane on one side of a straight line of infinite length in the plane.
Origin of half-plane
1890-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for half-plane
  • The crack is sitting on the x-axis, which is on the boundary of the upper half-plane.
  • Solutions were obtained in the half-plane for varying vertical eccentricities.
  • The graph of the solutions of a linear inequality is a half-plane bounded by the graph of its related linear equation.
  • The design is independent of desired output voltage and stabilizing gain, and is free of right-half-plane zero effects.

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