Cobind and Chill
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Recently the comonad has been getting several mentions, although real-world applications are less common than for the monad. One example often cited is to use comonads to do signal processing. But what does it mean in practice?
During this talk, you will get a sense of how to use the comonad in this way (along with other functional tools) by processing and decoding a familiar real-world signal, the old-school analogue composite video, as we build a homemade TV capture card. Starting with a minimal stream-like structure, we will define a comonad on it, recycle common functional concepts into a signal processing toolkit, and build up until we see an actual colour TV picture.
You will also learn how this endeavour lends itself well, at least in theory, to a functional treatment, and perhaps get some motivation to find more uses for the comonad and other techniques employed.
YOU MAY ALSO LIKE:
- 'Inappropriate' applications for Scala (SkillsCast recorded in December 2015)
- Lightbend Scala Language - Professional (in London on 9th - 10th September 2019)
- Lightbend Scala Language - Expert (in London on 11th - 13th September 2019)
- Scala eXchange London 2019 (in London on 12th - 13th December 2019)
- F# eXchange 2020 (in London on 2nd - 3rd April 2020)
- London Java Community July (in London on 24th July 2019)
- London Clojurians August (in London on 6th August 2019)
- Why API Design Matters, and Why Yours Sucks! (and mine sucks too!) (SkillsCast recorded in June 2019)
- The Elements of Tagless Final Style (SkillsCast recorded in May 2019)
Thanks to our sponsors
Cobind and Chill
Danielle Ashley
Danielle took up functional programming in Scala a few years back as a mental challenge and much enjoyed it since, with gratitude to the great people she met on the way. Alongside Scala being the day job, she has an amateurish inclination to look at unusual domains with FP in the misguided conviction that there has to be a 'clever' solution for every problem.
Please log in to watch this conference skillscast.
Recently the comonad has been getting several mentions, although real-world applications are less common than for the monad. One example often cited is to use comonads to do signal processing. But what does it mean in practice?
During this talk, you will get a sense of how to use the comonad in this way (along with other functional tools) by processing and decoding a familiar real-world signal, the old-school analogue composite video, as we build a homemade TV capture card. Starting with a minimal stream-like structure, we will define a comonad on it, recycle common functional concepts into a signal processing toolkit, and build up until we see an actual colour TV picture.
You will also learn how this endeavour lends itself well, at least in theory, to a functional treatment, and perhaps get some motivation to find more uses for the comonad and other techniques employed.
YOU MAY ALSO LIKE:
- 'Inappropriate' applications for Scala (SkillsCast recorded in December 2015)
- Lightbend Scala Language - Professional (in London on 9th - 10th September 2019)
- Lightbend Scala Language - Expert (in London on 11th - 13th September 2019)
- Scala eXchange London 2019 (in London on 12th - 13th December 2019)
- F# eXchange 2020 (in London on 2nd - 3rd April 2020)
- London Java Community July (in London on 24th July 2019)
- London Clojurians August (in London on 6th August 2019)
- Why API Design Matters, and Why Yours Sucks! (and mine sucks too!) (SkillsCast recorded in June 2019)
- The Elements of Tagless Final Style (SkillsCast recorded in May 2019)
Thanks to our sponsors
Cobind and Chill
Danielle Ashley
Danielle took up functional programming in Scala a few years back as a mental challenge and much enjoyed it since, with gratitude to the great people she met on the way. Alongside Scala being the day job, she has an amateurish inclination to look at unusual domains with FP in the misguided conviction that there has to be a 'clever' solution for every problem.