Göttingen Collection of Mathematical Models and Instruments

Case number 4

Cubic surface with 3 real conic double points Cubic surface with 3 real conic double points Cubic surface with 3 real biplanar double points Cubic surface with with a biplanar double point
Cubic surface with a biplanr double point Cubic surface with 4 real double points Cubic surface with a real conic and a biplanar double point Cubic surface with a conic and a biplanar double point
Cubic surface with a biplanar double point Cubic surface with with a biplanar and 2 real conic double points Chord central point area of a space curve of 4. order. Surface of 12. order
Ring cyclide of Dupin Cyclide with a uniplanar double point Cyclide with a uniplanar double point Cyclide with two conjugated imaginary double points and a real double point
Cyclide of Dupin Parabolic horn cyclide of Dupin Spindel cyclide of Dupin Horn cyclide of Dupin
Cyclide of Dupin Cyclide of Dupin Cyclide with two conjugated imaginary double points
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