# quadricSurface -- creates a QuadricSurface

## Description

This function takes a polynomial ring in 4 variables over a field as the coordinate ring of P3 and creates a QuadricSurface in this ring.

## Synopsis

• Usage:
Q = quadricSurface(R)
• Inputs:
• Outputs:
 i1 : quadricSurface(ZZ/32003[x,y,z,w]) o1 = ideal(- y*z + x*w) o1 : QuadricSurface

## Ways to use quadricSurface :

• "quadricSurface(Ring)"

## For the programmer

The object quadricSurface is .