On Thu, Sep 18, 2008 at 4:54 PM, Alex Raichev <[EMAIL PROTECTED]> wrote:
>
> Now, with the above in mind, how do you write a function to evaluate
> that sine limit given a variable from the user? We know the following
> does not work.
>
> sage: var('x')
> x
> sage: def limmy(w):
> ....: return limit(sin(w)/w,w=0)
> sage: limmy(x)
> sin(x)/x
>
> More generally, how do you execute functions requiring keyword
> arguments, such as limit(), when you don't know the symbolic variable
> names involved (but have references to them)?
Here's one way to do it:
sage: def limmy(w):
....: return limit(sin(w)/w,**{str(w):0})
....:
sage: limmy(x)
1
sage: limmy(var('w'))
1
Not the most elegant, but it works.
--Mike
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/sage-support
URLs: http://www.sagemath.org
-~----------~----~----~----~------~----~------~--~---
