Properties
Category
English
Tags
Movable point, restrict, constrain, integer coordinates, integer, whole numbers, circles, centre, point
Due On
2019-10-30
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Answered
Hi there kind helper,
I've created a little Geogebra file to show my students a locus to do with circles...
They can drag the centre of each circle (movable points 'A' and 'B') to where they like
BUT, I want to restrict it so they can only drag the centres to points with INTEGER COORDINATES.
Is that possible?
Thanks for your help...
Files:
Circle of Appol...
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Move a free movable point C and define
Create a free movable and hide point A'
then define:
A = DynamicCoordinates(A', round(x(A')), round(y(A')))
Or if the integer is for example 2, then define
A = DynamicCoordinates(A', round(x(A') / 2) 2, round(y(A') / 2) 2)
instead of constant 2 a slider is also possible
.
Note: you should use this variant if you want the integer to be independent of the zoom factor.
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