[Haskell-cafe] Efficiency/Evaluation Question

[Christopher Howard]

On 06/15/2013 04:39 PM, Tommy Thorn wrote:
> 
> 
> There's not enough context to answer the specific question,
> but lazy evaluation isn't magic and the answer is probably "no".
> 
> Tommy
> 

Perhaps to simplify the question somewhat with a simpler example.
Suppose you have

code:
--------
let f x = if (x > 4) then f 0 else (sin x + 2 * cos x) : f (x + 1)
--------

After calculating at x={0,1,2,3}, and the cycle repeats, are sin, cos,
etc. calculated anymore?

-- 
frigidcode.com

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