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January 26, 2015

January 26, 2015

Posted by **Mario** on Monday, January 16, 2012 at 7:50pm.

- math -
**MathMate**, Monday, January 16, 2012 at 7:57pmThe transformation is isotropic, i.e. expands/contracts in the same proportion in both directions, evidenced by the common factor 3 in both x and y.

Thus the image retains the same shape as the original, in other words, angles are preserved.

The +1 and -4 are translations which do not change the shape nor the size of the image.

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