Two images, the left is a pile of UK coins, the right is the same image inverted about the circle around the central 10p coin.
#mathartmarch Day31: Change.
Let me present Change - Changed. This is an inversion in the circle, pixel by pixel, using some python code and the vector formula: x'=centre+(x-centre)*radius^2/(|x-centre|^2)
#python #circleinversions #noneuclideangeometry #mathsky
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