One of the four regions of the plane defined by the four possible combinations of signs 
, 
,
, and 
for 
.
Quadrant
See also
Hyperoctant, Octant, x-axis, y-axisExplore with Wolfram|Alpha
References
Courant, R. and Robbins, H. What Is Mathematics?: An Elementary Approach to Ideas and Methods, 2nd ed. Oxford, England: Oxford University Press, p. 73, 1996.Referenced on Wolfram|Alpha
QuadrantCite this as:
Weisstein, Eric W. "Quadrant." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Quadrant.html