An expression of the form a_0 + 1/(a_1 + 1/(a_2 + 1/(a_3 + ...))), which can be used to represent numbers or solve certain types of equations.
An expression of the form a_0 + 1/(a_1 + 1/(a_2 + 1/(a_3 + ...))), which can be used to represent numbers or solve certain types of equations.