These two equations determine the diode current and the diode voltage.

These equations determine in terms of the 's, which, in turn, are determined by the periodic boundary conditions.

An excitation distorts this density and similar integral equations determine these distortions.

The following equation determines the rank of in the key point set.

In the general case, the pairs (p,q) that satisfy the equation determine a family of planes at a given point:

This equation determines the electron's speed at any radius:

For a system involving two variables (x and y), each linear equation determines a line on the xy-plane.

For three variables, each linear equation determines a plane in three-dimensional space, and the solution set is the intersection of these planes.

For n variables, each linear equation determines a hyperplane in n-dimensional space.

The first two equations determine if the point is within the cardioid, the last the period-2 bulb.