On 9/12/07, Robert Bradshaw <[EMAIL PROTECTED]> wrote:
> That's assuming we go beyond 1-argument functions, which may or may
> not be a good idea (and is certainly less common).
>
> Also, I would propose
>
> sage: x, y = var('x y')
> sage: f(x) = x^2 + 1
> sage: f + sin
> x^2 + 1 + sin(x)
> sage: y + sin
> y + sin(y)
>
> BTW, I think this is a bug:
>
> sage: f = x+y
> sage: f
> y + x
> sage: f(4)
> y + 4
>
That's not a bug, that's *exactly* how we designed things
to work. Calling when the inputs are explicit is done with
the variables in dictionary order.
sage: var('x,y')
(x, y)
sage: f = x+y
sage: f(4)
y + 4
sage: f(4)(7)
11
If you have a good argument for changing this (and are willing
to the do work), I am certainly interested in it.
William
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