[Haskell-cafe] Problems with square root...
Hal Daume III
hdaume at ISI.EDU
Wed Dec 21 13:16:47 EST 2005
> Sigh... never fails. Spend an hour trying to solve a problem, and a
> minute after you write to the list you find the solution. I need
> brackets around sqrt. I'm surprised though. I don't understand why it
> dosn't work without brackets.
because "x y z" parses as "(x y) z", so "round sqrt 2" parses as "(round
sqrt) 2" and "round sqrt" doesn't make sense. "x(y)" doesn't mean
necessarily "apply y to x" as it does in C. parens only are used as they
are in math to separate stuff.
Hal Daume III | hdaume at isi.edu
"Arrest this man, he talks in maths." | www.isi.edu/~hdaume
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