[seqfan] Re: New Printer's Errors from JMF

[Edwin Clark]

On Thu, 19 Feb 2009, Hans Havermann wrote:

> Joshua Zucker:
>
>> I think that there's a well-enough established convention that 2^3^4
>> means 2^(3^4) that in the absence of evidence to the contrary, I'd
>> assume that meaning.
>
> Let me just second this sentiment. Mathematica, for example, knows
> that unparenthesized power stacks are evaluated top-down (or assumes
> it) and that is good enough precedence for me.
>

On the other hand, Maple 12 returns upon execution of 2^3^4:

    Error, ambiguous use of `^`, please use parentheses