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Here's one way to think about an elllipse:-- Mark two black dots on a piece of paper, or stick two nails into a piece of wood.-- Mark a dot anywhere else on the paper, just not on the line between thefirst two.-- Measure the distance of the new dot from the first one, and from the second one,then add those two distances.-- If you draw another dot at every place on the paper where the sum of thetwo distances from the first two dots is the same sum, you'll have an ellipse.-- The first two black dots, or the nails, are the foci (focuses) of the ellipse.-- The farther apart the first two black dots are, the more eccentric the ellipse is ...skinny compared to its length.-- When the first two black dots get so close together that they're the same dot,then you have an ellipse whose eccentricity is zero, and there's a special name forthat ellipse. It's called a 'circle'.Easy way to draw it:-- Tie a piece of string in a loop.-- Drop the loop of string around the two nails.-- Put a pencil point into the loop. Pull it out to the side until there's no slack in the loop.-- Run the pencil around, keeping it against the string with no slack in the loop.You're drawing an ellipse.If you pull out one nail, you're drawing a circle.
Here's one way to think about an elllipse:-- Mark two black dots on a piece of paper, or stick two nails into a piece of wood.-- Mark a dot anywhere else on the paper, just not on the line between thefirst two.-- Measure the distance of the new dot from the first one, and from the second one,then add those two distances.-- If you draw another dot at every place on the paper where the sum of thetwo distances from the first two dots is the same sum, you'll have an ellipse.-- The first two black dots, or the nails, are the foci (focuses) of the ellipse.-- The farther apart the first two black dots are, the more eccentric the ellipse is ...skinny compared to its length.-- When the first two black dots get so close together that they're the same dot,then you have an ellipse whose eccentricity is zero, and there's a special name forthat ellipse. It's called a 'circle'.Easy way to draw it:-- Tie a piece of string in a loop.-- Drop the loop of string around the two nails.-- Put a pencil point into the loop. Pull it out to the side until there's no slack in the loop.-- Run the pencil around, keeping it against the string with no slack in the loop.You're drawing an ellipse.If you pull out one nail, you're drawing a circle.
English Language Keyboards:* An ellipse is a geometric shape. There is not a special key for geometric shapes. However, the letter O in some fonts is almost elliptical e.g. Oo, or you may be able to insert an elliptical symbol using the drop-down 'Insert' menu in your word-processing toolbar. * If you want to insert an ellipsis, which is a mark indicating a missing word, the customary way of doing this is by using three dots ...
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