README.md

My APL Practice

Includes languages derived from APL

References

• Docs
  • Wikipedia
    • APL (programming language)
    • A+ (programming language)
    • J (programming language)
    • K (programming language)
  • Books
    • Wikidocs > J 언어 첫걸음
• Development Environments > JDoodle
  • Online Apl IDE
  • Online J Language IDE

<List>

• APL, J : Calculate The Average (2024.10.24)

APL, J : Calculate The Average (2024.10.24)

• My initial trial to code in APL and J (with Perplexity)

• Run with APL 1.8 and J 9.01.10 in JDoodle

• APL is an ancestor of functional programming languages released in the 1950s. It presents difficulties not only due to its strange syntax but also because it uses special keywords not supported by modern standard keyboards. The derivative language J alleviates these difficulties by using ASCII characters.

• Code and Output

  APL : CalcAvg.apl

  avg ← {(+⌿⍵)÷≢⍵}    ⍝ Define a function to calculate the average
  avg 1 2 3 4 5       ⍝ Calculate the average of the array

  3

  J : CalcAvg.ijs

  avg =: +/ % #           NB. Define a function to calculate the average
  echo avg 1 2 3 4 5      NB. Calculate the average of the array

  3