MaplePrimes - answers and comments on Question, AllPairsDistance()

Browse it

hirnyk — Sat, 21 May 2011 07:49:08 Z

Browse that Matrix by ContextSensitiveMenu/Browse (right click on the output). For example,
> with(GraphTheory):
> G := RandomGraphs[RandomGraph](17, 25, connected);

       GRAPHLN(undirected, unweighted,

         [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17],

         Array(%id = 152823860), GRAPHLN/table/2, 0)
> M:=AllPairsDistance(G);
           [[` 17 x 17 `Matrix],[`Data Type: `anything],[`Storage: `triangular[upper]],[`Order: `C_order]]

> M[4,8]
3

See AllPairsDistance.mw

rtablesize

Alec Mihailovs — Sat, 21 May 2011 07:56:22 Z

Do the following before using AllPairsDistance command,

interface(rtablesize=25):

Alec

Thanks

Dogod — Sun, 22 May 2011 19:06:45 Z

Thank you very much for all boys.

They're great.

Greetings

But

hirnyk — Sat, 21 May 2011 12:14:38 Z

Look at the output of
> with(GraphTheory):
> G := RandomGraphs[RandomGraph](170, 250, connected):
> interface(rtablesize = infinity):
> M := AllPairsDistance(G);

size 25

Alec Mihailovs — Sat, 21 May 2011 22:34:49 Z

@hirnyk

Yes, that's true. For matrices not fitting on a page, the browser is a better option.

However, for matrices fitting on the page, it is better to see them on that page, I think.

That's why I typed 25 instead of infinity. With a size not greater than 25, the matrix usually fits on the page, and for larger sizes the replacement is printed instead, which can be used for browsing as you correctly stated in another answer.

Alec