Semi Minor Axis of Ellipse given Linear Eccentricity and Semi Major Axis Calculator

Calculate Semi Minor Axis of Ellipse





Formula

The formula to calculate the Semi Minor Axis of an Ellipse is:

\[ b = \sqrt{a^2 - c^2} \]

Definition

The Semi Minor Axis of an Ellipse is half of the length of the longest chord which is perpendicular to the line joining the foci of the ellipse. The Semi Major Axis of an Ellipse is half of the chord passing through both the foci of the ellipse. The Linear Eccentricity of an Ellipse is the distance from the center to any of the foci of the ellipse.

Example Calculation

Let's assume the following values:

Using the formula:

\[ b = \sqrt{10^2 - 8^2} = 6 \]

The Semi Minor Axis of the Ellipse is 6 meters.

Conversion Chart

Semi Major Axis (meters) Linear Eccentricity (meters) Semi Minor Axis (meters)
9 8 4.123105625617661
9.5 8 5.123475382979799
10 8 6.000000000000000
10.5 8 6.800735254367722
11 8 7.549834435270750