Quadrant - one quarter of the area on a given two-dimensional graph, as delimited by the axes of the coordinate system.¹⁾

By convention, the quadrants are numbered in an anticlockwise manner, starting from the top right:²⁾³⁾⁴⁾

• top right = first quadrant
• top left = second quadrant
• bottom left = third quadrant
• bottom right = fourth quadrant

An example of a hysteresis loop with the graph quadrants indicated.

Location of quadrants on a two-dimensional graph with a B-H hysteresis loop

^{S. Zurek, E-Magnetica.pl, CC-BY-4.0}

• Hysteresis loop