Avoid high processor usage while running TreeForm/@NestList[#^#&,x,4] ?

Questions
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1

When I run

TreeForm/@NestList[#^#&,x,4]

In version 11, the third output just keeps blinking. Processor usage stays high on the kernel process even after executing.

Anybody experiencing this?

2

Hi,

I cannot reproduce that on MMA 11 and OSX 10.11.6

Cheers,

Marco

3

I see it on MMA 11 running under Windows 10

4

I think your code has a useless \

TreeForm@NestList[#^# &, x, 4]

bslash.png
bslash.png360×180 4.44 KB

5

Yeah I’m using win 10

6

The code was lifted from STEPHEN WOLFRAM’S book: elementary introduction to the wolfram language. Every keystroke is intended.

7

Hi,

how do you conclude that? Wouldn’t that depend a bit on what you want to represent? It seems to be perfectly valid to look at the elements of the sequence.

TreeForm /@ NestList[#^# &, x, 4]

ScreenShot2016-08-24at19.40.12.png
ScreenShot2016-08-24at19.40.12.png1196×778 33.7 KB

It appears to me that the input is syntactically correct.

Cheers,

Marco

8

Agree! It was only a supposition!

I have the same effect on my computer reported by Jackreece.

In[1]:= $Version

Out[1]= “11.0.0 for Microsoft Windows (64-bit) (July 28, 2016)”

9

Ok, great

10

Ok, I tried this on several Macs. It appears to be a non-issue there.

Cheers,

M.

11

Sorry everyone.

Now I can see it on a Mac Mini, but only when I move the Mouse.

Shame. I hope for one Macs would not have that problem…

Cheers,

Marco

12

Effect appears even for

TreeForm /@ NestList[#^# &, x, 2]

and only for one element:

NDeque.gif
NDeque.gif360×279 4.17 KB

All the others are ok:

10695NDeque.gif
10695NDeque.gif858×411 15.8 KB

13

Iv written to support. Does anyone have a faster way to get to them? It could be a problem with the rendering subsystem.

14

I have reported to support, too, and sent them the file.