[erlang-questions] list comprehensions with predefined functions?

Circular Function <>
Wed Jun 18 14:08:52 CEST 2008


how do i use a predefined function in a listcomprehension?

and if i have 2 variables how do I write then?


42> c(mymath).            
{ok,mymath}
43> [mymath:power || X <- [1,2,3] Y <- 3].
* 1: syntax error before: Y
43> [mymath:power || X <- [1,2,3], Y <- 3].
* 1: illegal expression
44> [mymath:cube || X <- [1,2,3]].         
* 1: illegal expression
45> [X*2 || X <- [1,2,3]].                 
[2,4,6]
46> [X*X || X <- [1,2,3]].
[1,4,9]
47> [X*2 || X <- [1,2,3]].        
[2,4,6]
48> [mymath:sq || X <- [1,2,3]].
* 1: illegal expression
49> 



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