a list compiled by Alex Kasman (College of Charleston)

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Geometria (1987)
Guillermo del Toro (Writer and Director)

A boy whose father has died and who is in danger of failing his math class summons a demon, asking him to reunite his family and to ensure that he never fails geometry again. Both wishes are granted, though not as the boy had hoped, and this is due at least in part to his difficulties with geometry.

This gory short film was an early work by the now famous director Guillermo del Toro. It is loosely based on the story Naturally by Fredric Brown.

Thanks to Steve Green who wrote to tell me about its existence and also pointed out that it is posted on YouTube (although it looks like it was made by pointing a camera at a television screen and so the image quality is very low).

More information about this work can be found at
(Note: This is just one work of mathematical fiction from the list. To see the entire list or to see more works of mathematical fiction, return to the Homepage.)

Works Similar to Geometria
According to my `secret formula', the following works of mathematical fiction are similar to this one:
  1. Naturally by Fredric Brown
  2. I of Newton by Joe Haldeman
  3. The Devil a Mathematician Would Be by A.J. Lohwater
  4. The Devil and Simon Flagg by Arthur Porges
  5. Danny’s Inferno by Albert Cowdrey
  6. Old Fillikin by Joan Aiken
  7. Necroscope (Series) by Brian Lumley
  8. A Logical Magician by Robert Weinberg
  9. The Lions in the Desert by David Langford
  10. The Ghosts by Lord Dunsany
Ratings for Geometria:
RatingsHave you seen/read this work of mathematical fiction? Then click here to enter your own votes on its mathematical content and literary quality or send me comments to post on this Webpage.
Mathematical Content:
1/5 (1 votes)
Literary Quality:
3/5 (1 votes)

GenreFantasy, Horror,
MediumFilms, Available Free Online,

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Exciting News: The total number of works of mathematical fiction listed in this database recently reached a milestone. The 1,500th entry is The Man of Forty Crowns by Voltaire. Thanks to Vijay Fafat for writing the summary of that work (and so many others). I am also grateful to everyone who has contributed to this website. Heck, I'm grateful to everyone who visited the site. Thank you!

(Maintained by Alex Kasman, College of Charleston)