Peirce Quincuncial
| Peirce Quincuncial | |
|---|---|
| Creator | Charles Sanders Peirce (1879) |
| Group | Miscellaneous |
| Property | Conformal |
| Other Names | — |
| Remarks | The equator (red line in the image) is a square whose corners are the only four points on the map which fail to be conformal. In the image, the map is centered to 20° West. |
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