Radial Distance Calculator

Formula

The formula to calculate the Radial Distance (D_rad) is:

\[ D_{rad} = \sqrt{(X_2 - X_1)^2 + (Y_2 - Y_1)^2} \]

Where:

Radial Distance (D_rad): The distance between two points in a plane, calculated using the Pythagorean theorem.
Internal Point (X₁, Y₁): The initial point in the coordinate system.
Point along Radius (X₂, Y₂): The second point in the coordinate system.

Let's say the internal point is (3, 4) and the point along the radius is (7, 1). Using the formula:

\[ D_{rad} = \sqrt{(7 - 3)^2 + (1 - 4)^2} \]

We get:

\[ D_{rad} = \sqrt{16 + 9} = \sqrt{25} = 5 \]

So, the radial distance is 5 units.