English: A method to locate the foci of any ellipse, by CMG Lee. The foci (purple crosses) are at intersects of the major axis (red) and a circle (cyan) of radius equal to half of the major axis (blue), centred on an end of the minor axis (grey).
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{{Information |description ={{en|1=A method to locate the foci of any ellipse, by CMG Lee. The foci (purple crosses) are at intersects of the major axis (red) and a circle (cyan) of radius equal to half of the major axis (blue), centred on an end of the minor axis (grey).}} |date = |source ={{own}} |author =User:Cmglee }} Category:Ellipses
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Short title
Locating the foci of an ellipse
Image title
A method to locate the foci of any ellipse, by CMG Lee. The foci (purple crosses) are at intersects of the major axis (red) and a circle (cyan) of radius equal to half of the major axis (blue), centred on an end of the minor axis (grey).