Maybe you answer is different from mine because you are running Perl in another architecture. Are you using a Intel based machine?
And how can I decide, up to what point I can trust Perl calculations?

Becasue it is a different situation that we have intrinsic error in floating point numbers like
http://en.wikipedia.org/wiki/Floating_point#Accuracy_problems

For that kind of expected problems i am ready to check my values properly.

But for what I get from a call to a language function why should it be careful that it will return a wrong number?

Is there a way that I restrict Perl return values to what is safe for big number without truncating all return numbers from native Perl functions by myself?
And when Perl is returning numbers in this fashion can I be sure that if I use bigger numbers, the error wont grow to make more wrong digits?

In reply to Re^2: cos (100000000.0) by kavehmz
in thread cos (100000000.0) by kavehmz

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