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 most commonly occurring graphs are quadratic, cubic, reciprocal, exponential and circle graphs. Their equations can be used to plot their shape. Part of Maths Algebra.

Mathematics: Facts about counting, equations, and infamous unsolved problems Spooky and mysterious indeed—unless, of course, the patterns were made by humans.

The equation was first proposed by Yamaji Nushizumi in 1751 and has been independently rediscovered multiple times—by Jakob Steiner in 1826, William Beecroft in 1842, and Frederick Soddy in 1936 ...