If he wants to learn such an obscure (popularity-wise) language, he's probably better off using a popular (relatively), well-documented, well-supported (libraries) and stable dialect such as Common Lisp or Scheme.
I've just started learning Lisp and I find Arc fun. Hence, the suggestion. There are some nice people like coconutrandom, CatDancer, palsecam, zck and conanite who are active and helpful on the forum e.g. http://arclanguage.org/item?id=10554. The unofficial code repository Anarki is pretty good too.
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Start today: http://arclanguage.org/
If he wants to learn such an obscure (popularity-wise) language, he's probably better off using a popular (relatively), well-documented, well-supported (libraries) and stable dialect such as Common Lisp or Scheme.
I've just started learning Lisp and I find Arc fun. Hence, the suggestion. There are some nice people like coconutrandom, CatDancer, palsecam, zck and conanite who are active and helpful on the forum e.g. http://arclanguage.org/item?id=10554. The unofficial code repository Anarki is pretty good too.
People are doing some cool stuff - http://arcfn.com/labels/arduino.html
What's not to like?