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'It Depends on Your Point of View!' printed from http://nrich.maths.org/
Preveina explained how she drew an image on a $4
\times 4$ square grid and then distorted the grid to distort her
image. Here is her distorted grid:
Preveina noted that the process of creating a
grid for a piece of anamorphic art uses similar mathematical skills
to the process of enlarging a shape.
Timothy sent us a picture he created using the
techniques of anamorphosis, although he did not send us an
explanation of how he created his image, or which position it
should be viewed from in order to see it correctly. Here is his