| r | s | theta | phi | e | f | |
| T1 | 0.5 | 0.5 | 180 | 180 | 0.5 | 0.5 |
| 4(b) | |
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| Because T4 gives the upper right corner of the unit square, T1 must take the upper right corner to the lower left corner. This can be done by a 180 deg rotation. To guarantee the IFS generates the unit square, some translations must compensate for the change of position induced by the rotation. | ||||||||||||||||
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