From: "John Cremona" <john.crem...@gmail.com>
Date: Fri, 7 Nov 2008 11:23:26 +0000
Local: Fri, Nov 7 2008 6:23 am
Subject: Re: [sage-devel] Re: calling symbolic expressions, was: Why Sage needs var(...) commands unlike Mathematica?
OK so I don't know my alphabet.
2008/11/7 Jason Grout <jason-s...@creativetrax.com>:
I prefer this one:
> I think it is very handy to be able to partially evaluate an
> plot( f(x=5), (y, -10,10))
> plot( f(x=5,y=y), (y, -10,10))
> plot( f(5,None), (y, -10,10))
> plot( f(5,y), (y, -10,10))and it would be even better if y could be replaced by a dummy
variable, like this: plot( f(f,t), (t,-10,10) ) -- without having
to declare t as a variable too.
> g(y) = f(5,y)
> plot(g, (y, -10,10))
> That last one seemed too verbose
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