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  1. Double cone - Wikipedia

  2. Cone - Wikipedia

  3. The double cone - Math Insight

    Learn about the double cone, a quadric surface that can be used to define conics. Explore its equation, cross sections and interactive applets that show how to change its shape and orientation.

  4. Double Cone -- from Wolfram MathWorld

    4 days ago · Two cones placed apex to apex. The double cone is given by algebraic equation (z^2)/ (c^2)= (x^2+y^2)/ (a^2).

  5. Cone -- from Wolfram MathWorld

    4 days ago · A cone is a ruled surface created by sweeping a line segment around a circle or an ellipse. Learn about the types, equations, volumes, areas, curvatures, and nets of cones, as well as their applications and history.

  6. IGQS: Double Cone - University of Illinois Urbana-Champaign

  7. Double cone (biology) - Wikipedia

  8. Double Cones and the Diverse Connectivity of …

    Jun 9, 2021 · Double cones are the most common photoreceptor cell type in most avian retinas, but their precise functions remain a mystery. Among their suggested functions are luminance detection, polarized light detection, and …

  9. Double Cone - Mathwords

    A double cone is a geometric figure made of two right circular cones placed apex to apex. Learn how to graph a double cone using the equation z 2 = x 2 + y 2 and see examples of conic sections and degenerate conic sections.

  10. Species–specific circuitry of double cone photoreceptors in two …