*in which we find out about permutation properties of Möbius maps and start looking at cross-ratios.
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*in which we find out about permutation properties of Möbius maps and start looking at cross-ratios.
*

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*in which we view Möbius maps via matrices, and compose geometrically meaningful maps.
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*in which we find out about fixed points and permutation properties of Möbius maps.
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*in which we view Möbius maps via matrices, and compose geometrically meaningful maps.
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