Re: [Maxima-discuss] Maplist question

[Stavros M. <mac...@gm...>]

*maplist*, by default (*inflag:false*) operates on the *visible* structure
of the expression, which in this case is "-"(x1). You can "recover" the
minus sign using *op*: *op(-x1) => "-"*.

If you want to operate on the *internal* structure of the expression (which
is usually more convenient for programmatic manipulation), set *inflag:true*,
and then *op(-x1) => "*"* and *args(-x1) => [-1, x1]*.

On Sun, Mar 3, 2024 at 6:42 PM Dan Stanger <dan...@gm...>
wrote:

> Hello All,
> maplist(lambda([u],u),-x1)
> returns the list [x1]. Shouldn't it be [-x1]? If [x1] is correct, is there
> a way to recover the minus sign?
> Dan Stanger
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