126358.fig.001
Figure 1: Constant slope surface 𝐐 ( 𝐮 , 𝐯 ) × 𝐐 𝟏 ( 𝐮 , 𝐯 ) , 𝐟 ( 𝐯 ) = ( 𝟏 / 𝟐 ) ( 𝐜 𝐨 𝐬 𝟐 𝐯 , 𝟑 , 𝐬 𝐢 𝐧 𝟐 𝐯 ) , 𝜽 = 𝝅 / 𝟒 .