A quadric is a quadratic surface. A surface
of the form

is also called a quadric, and
is said to be the parameter of the quadric.

## See also

Quadratic,

Quadratic
Surface
## Explore with Wolfram|Alpha

## References

Takahashi,
H. "Quadrica Page." http://www2.kawase-h.ed.jp/Teachers/~Takahashi/Quadrica.html## Referenced
on Wolfram|Alpha

Quadric
## Cite this as:

Weisstein, Eric W. "Quadric." From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/Quadric.html

## Subject classifications