incorrect value for slope of Gamma(x) at x=1

[Dieter]

(08-03-2018 04:19 PM)Tim Wessman Wrote:  So what is probably going on here is that it is returning the symbolic constant

Just to make this clear:
The slope \(\Gamma~' (1) \) is –γ, i.e. the negative Euler-Mascheroni constant = –0,5772...

Now...

(08-03-2018 04:19 PM)Tim Wessman Wrote:  ...internally in the plotter and it is not a numeric value, hence it reports Not a Number.

...does this mean that the symbolic result "–γ" is returned to the plotter app which in turn does not convert this into a numeric value and thus returns "NaN"?

(08-03-2018 04:19 PM)Tim Wessman Wrote:  We probably need to handle attempting to convert to a numeric value in these few cases.

Sounds like a good idea. ;-)

Dieter