Dirk Bollaerts &
Céleste Paalvast

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Image gallery on the continuity of functions of two variables

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Graph plot of a non-continuous function.

Graph plot of a continuous function. Consult pdf file exercise 7.

Graph plot of a non-continuous function.

Contour plot of a continuous function. Consult pdf file exercise 7.

Graph plot of a continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 9.

Graph plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 9.

Graph plot of a non-continuous function.

Graph plot of a noncontinuous function. Consult pdf file exercise 10.

Graph plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 10.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 13.

Graph plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 13.

Graph plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 14.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 14.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 17.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 17.

Graph plot of a non-continuous function.

Graph plot of a continuous function. Consult pdf file exercise 20.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 20.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 22.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 22.

Graph plot of a ???non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 23.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 23.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 28.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 28.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 31.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 31.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 32.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 32.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 34.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 34.

Graph plot of a ???non-continuous function.

Graph plot of a continuous function. Consult pdf file exercise 34.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 34.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 35.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 35.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 36.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 36.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 36.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 36.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 37.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 37.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 40.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 40.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 42.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 42.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 44.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 44.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 46.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 46.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 48.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 48.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 52.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 52.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 54.

Images of continous curves of a non-continuous function.

Images of continous curves of a non-continuous function. Consult pdf file exercise 54.

Contour plot of a ???non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 54.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 55.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 55.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 56.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 56.

Graph plot of a ???non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 57.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 57.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 58.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 58.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 59.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 59.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 61.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 61.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 63.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 63.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 66.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 66.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 67.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 67.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 68.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 68.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 69.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 69.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 72.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 72.

Graph plot of a non-continuous function.

Graph plot of a non-continuous function. Consult pdf file exercise 73.

Contour plot of a non-continuous function.

Contour plot of a non-continuous function. Consult pdf file exercise 73.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 74.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 74.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 75.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 75.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 76.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 76.

Graph plot of a continuous function.

Graph plot of a continuous function. Consult pdf file exercise 76.

Contour plot of a continuous function.

Contour plot of a continuous function. Consult pdf file exercise 76.

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The same images in the pdf file are not reduced in size.

The print resolution of those images is about 300 DPI. So they are much more suited for modern printers.

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