This is probably what you wanted:

sage: bessel_Y(RealField(200)(1), 1.0, hold=True)
-0.78121282130028871654715000004796482054990639071644460784383


On Friday, October 10, 2014 10:25:57 AM UTC+1, Jeroen Demeyer wrote:
>
> Could somebody who knows about numerical evaluation of symbolic 
> functions please have a look at #17130. The problem is that there is 
> some coercion going on *after* calling _eval_(). 
>
> Look at the difference between the following two (the second has false 
> precision): 
>
> sage: bessel_Y._eval_(RealField(200)(1), 1.0) 
> -0.781212821300289 
>
> sage: bessel_Y(RealField(200)(1), 1.0) 
> -0.78121282130028868451177004317287355661392211914062500000000 
>

-- 
You received this message because you are subscribed to the Google Groups 
"sage-devel" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to sage-devel+unsubscr...@googlegroups.com.
To post to this group, send email to sage-devel@googlegroups.com.
Visit this group at http://groups.google.com/group/sage-devel.
For more options, visit https://groups.google.com/d/optout.

Reply via email to