Le 21/02/2016 20:40, John Cremona a écrit :
Yes, it works... but my small piece of code should also give correct results...Try RealField(500).pi() and similar.
thanks. t.
On 21 Feb 2016 18:10, "Thierry Dumont" <[email protected] <mailto:[email protected]>> wrote: I have students who want to compute decimals of pi...so, what can we do with RealField(n) ? I make the following script (pi.sage): ------------------------ for p in [2..10]: R=RealField(10^p) pii=4*atan(R(1)) print p,R,pii ------------------------ Then, using sage 7.0 or 7.1.beta4: attach("pi.sage") This produces a lot of seemingly correct output, but, as it takes a too long time to finish :-), I interrupt the computation (Ctrl-c). So, lets try again; replace 10 by 5 in the for statement (I do not leave sage). I get NaNs: 2 Real Field with 100 bits of precision NaN 3 Real Field with 1000 bits of precision NaN 4 Real Field with 10000 bits of precision NaN 5 Real Field with 100000 bits of precision NaN ..... Strange. Yours t.d. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected] <mailto:sage-support%[email protected]>. To post to this group, send email to [email protected] <mailto:[email protected]>. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected] <mailto:[email protected]>. To post to this group, send email to [email protected] <mailto:[email protected]>. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
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