The Aristod company and the IREM of Lyon and Grenoble propose mathematical greeting cards
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Explanations to create cards by modifying curves
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Multicolor function in a circle
Moving cardioid
Small circles moving on a cardioid
Changing cubic curve
Stretching sinusoid
Spiral with small segments
Evolving bag
Ellipse filling a square
Lissajous curve
Deforming bifolium
Turning windmill
Turning clover
Butterfly curve
Ceva's trisectrix and sectrix
Archimedian spiral
Fermat's spiral
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