This equation is the same as the general equation of a circle, it's just written in a different form. Example Find the equation of the circle with centre \((2, - 3)\) and radius \(\sqrt 7\).

The ggfreehand package allows one to add freehand red circles to a plot. This can improve many plots, but most importantly those that are to be posted on the Stack Exchange network, since everyone ...

It begins by reviewing statistical graphs and then explains the relationship between variables such as distance and time through equations. The film demonstrates how to plot ordered pairs on ...

Math fans can now spin, zoom, and explore complex equations in full 3D right on their iPad with iPadOS 26. Here's what it looks like. With iPadOS 26, Apple is introducing interactive 3D graphing ...

Higher; Circles and graphs Equation of a circle. The equation of a circle can be found using the centre and radius. The discriminant can determine the nature of intersections between two circles ...