Item:Q6401: Difference between revisions
Created a new Item: quadric surface, locus of zeros of a quadratic polynomial in a three-dimensional space (affine or projective, not necessarily real) |
Created claim: defining formula (P333): a_{11}x^2 + a_{22}y^2+a_{33}z^2+2a_{12}xy+2a_{23}yz+2a_{13}xz+2a_{14}x+2a_{24}y+2a_{34}z+a_{44}=0 |
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| Property / subclass of | |||
| Property / subclass of: surface (mathematics) / rank | |||
Normal rank | |||
| Property / subclass of | |||
| Property / subclass of: quadric / rank | |||
Normal rank | |||
| Property / subclass of | |||
| Property / subclass of: locus / rank | |||
Normal rank | |||
| Property / defining formula | |||
a_{11}x^2 + a_{22}y^2+a_{33}z^2+2a_{12}xy+2a_{23}yz+2a_{13}xz+2a_{14}x+2a_{24}y+2a_{34}z+a_{44}=0 | |||
| Property / defining formula: / rank | |||
Normal rank | |||
