Rapidly convergent series for ellipse perimeter
The Endeavour 2024-06-20
Summary:
The previous post looked at two simple approximations for the perimeter of an ellipse. Approximations are necessary since the perimeter of an ellipse cannot be expressed as an elementary function of the axes. Kepler noted in 1609 that you could approximate the perimeter of an ellipse as the perimeter of a circle whose radius is […]
The post Rapidly convergent series for ellipse perimeter first appeared on John D. Cook.