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      QUAD_MESH_ORDER1_DISPLAY - Plot Piecewise Constant Data on a Quadrilateral Mesh
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      QUAD_MESH_ORDER1_DISPLAY <br> Plot Piecewise Constant Data on a Quadrilateral Mesh
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      <b>QUAD_MESH_ORDER1_DISPLAY</b> 
      is a MATLAB program which 
      can make a 3D plot of piecewise constant data defined on a quadrilateral mes