[R] Optimization problem

Rui Barradas ruipbarradas at sapo.pt
Wed Apr 10 23:01:45 CEST 2013


Your thoght is mathematically right but numerically wrong. The result 
given by optimize is so close to the real minimum that numerical 
accuracy comes in and it becomes indistinguishable from the value you're 
You get the minimum up to a certain accuracy, not more.

Hope this helps,

Rui Barradas

Em 10-04-2013 19:33, nntx escreveu:
> Thank you professor. I think the minimum value of x^2 between -1 and 1 should
> be x=0, y=0. but the result is not that. I am thinking is any wrong with my
> thought?
> Thanks for helping me out!
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