# Area of an ellipse Calculator

## Calculates the area, circumference, ellipticity and linear eccentricity of an ellipse given the semimajor and semininor axes.

 semimajor axis a semiminor axis b b≦a 6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digit area S circumference L ellipticity c linear eccentricity f
 $\normal Ellipse\\\vspace{5}(1)\ area:\hspace{85} S=ab\pi,\hspace{20} b\le a\\(2)\ circumference:\\\hspace{20} L=4aE(k),\hspace{20} k=\sqrt{1-({\large\frac{b}{a}})^2}\\\vspace{5}\hspace{20} E(k):\ 2nd\ complete\ elliptic\ integral\\(3)\ ellipticity:\hspace{40} c={\large\frac{b}{a}}\\\vspace{5}(4)\ linear\ eccentricity :\ f=\sqrt{a^2-b^2}\\$

Area of an ellipse
 [1-10] /31 Disp-Num5103050100200
[1]  2019/03/10 13:08   Male / 40 years old level / High-school/ University/ Grad student / Very /
Purpose of use
Vehicle exhaust pipe.
[2]  2018/12/29 02:02   Male / 60 years old level or over / Others / Very /
Purpose of use
need to know cross sectional area of an oval shaped blood vessel
[3]  2018/12/28 11:26   Female / 30 years old level / An office worker / A public employee / Very /
Purpose of use
Calculate and compare cake tin sizes
[4]  2018/12/19 18:36   Male / 60 years old level or over / An engineer / Very /
Purpose of use
Sometimes it is required in the field to calculate the area of typical field
Comment/Request
very useful in the field
[5]  2018/12/03 04:45   Male / 20 years old level / Others / Useful /
Purpose of use
RPG world design, areas of a flat earth
[6]  2018/11/30 14:21   Male / 20 years old level / High-school/ University/ Grad student / Very /
Purpose of use
Frontal area for use in drag calculation.
[7]  2018/10/28 17:25   Male / 30 years old level / An engineer / Useful /
Purpose of use
area of skylight
[8]  2018/10/10 12:51   Female / 30 years old level / High-school/ University/ Grad student / Very /
Purpose of use
calculating area of backfield for pool
[9]  2018/08/08 07:09   Male / 30 years old level / An office worker / A public employee / Useful /
Purpose of use
Calculate area of an aircraft window to see how many instruments/probes can go through. Used for atmospheric research.
[10]  2018/07/31 22:06   Male / 60 years old level or over / An office worker / A public employee / Useful /
Purpose of use
Determine end area of inside and outside of elliptical concrete pipe to check pipe weight.

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