A brief overview of the languages which don't use the imperative programming paradigm. Also mentions promising new languages and a couple of esoteric programming languages.

1. The Other
Programming
Languages
By Aleksei Lorenz
@hypst CC BY 2.0 Windell Oskay

2. The Other?
Other programming paradigms
New or rarely used languages
CC BY-SA 2.0 yaph

3. Functional
languages
Focus on pure mathematical functions
Avoid state and mutable data Public Domain
CC BY 3.0 Nimrod95

4. Haskell
The famous functional programming language
main = putStrLn "Hello world!"
CC BY-SA 3.0 Graham Crumb
CC BY-SA 3.0 PureJadeKid

5. Haskell
Strong static type system
Lazy evaluations
quickSort :: Ord a => [a] -> [a]
quickSort [] = []
quickSort (x:xs) = quickSort [a | a <- xs, a < x] ++
[x] ++
quickSort [b | b <- xs, b >= x]
CC BY-SA 3.0 Graham Crumb

6. Logical
languages
CC BY 2.0 David Masters
Use formal logic
Prolog

7. Specialized
languages
CC BY-SA 3.0 Alexandre Buisse

8. Jeeves
Helps to enforce privacy policies
http://projects.csail.mit.edu/jeeves/
CC BY 2.0 Kai Hendry

9. Shaders
Run on the GPU
GLSL = OpenGL Shading Language
HLSL = High-Level Shading Language

10. Shaders
https://shadertoy.com

11. Promising
languages
Actively developed
CC BY 2.0 thienzieyung

12. Rust
A modern native language
Safety first!
CC BY 2.0 Paul Tomlin

13. Rust
Developed by Mozilla
https://github.com/mozilla/rust
CC BY 2.0 Paul Tomlin

14. Dart
A replacement for Javascript
Class based, optional typing
CC BY 2.0 Geoffrey Fairchild

15. Dart
Developed by google
https://code.google.com/p/dart/
CC BY 2.0 Geoffrey Fairchild

16. Esoteric languages
Impractical and weird, yet powerful
CC BY-SA 3.0 Matteo Turner

17. Brainfuck
CC BY 2.0 Vinay Shivakumar
++++++++[>++++[>++>+++>+
++>+<<<<-]>+>+>->>+
[<]<-]>>.>---.+++++++..+
++.>>.<-.<.++
+.------.--------.>>+.>+
+.
The most famous esoteric programming
language

18. ArnoldC
GET TO THE CHOPPER a
HERE IS MY INVITATION b
CONSIDER THAT A DIVORCE
c
KNOCK KNOCK d
ENOUGH TALK
CC BY-SA 3.0 Arturo Laguna
IT'S SHOWTIME
TALK TO THE HAND
"hello world"
YOU HAVE BEEN
TERMINATED
Based on the one-liners of Arnold
Schwarzenegger

19. Esoteric languages
More at http://esolangs.org/
CC BY-SA 3.0 Matteo Turner

20. Thanks
¿Questions?
@hypst
a.lorenz1@nuigalway.ie
CC BY 2.0 Alden Chadwick