It is a bit confusing, well maybe not, but tricky maybe is the right word.

However, it wouldn't be too hard to whip up a user defined proc.  Acer, that is a good example that explains a possible messy situation where you could end up with 1C+1C=548.3K and not the 275.15 it should be.

It is a bit confusing, well maybe not, but tricky maybe is the right word.

However, it wouldn't be too hard to whip up a user defined proc.  Acer, that is a good example that explains a possible messy situation where you could end up with 1C+1C=548.3K and not the 275.15 it should be.

It is perhaps a bug in the units package?

Interestingly

with(Units[Standard]):
11[[degC]]
-------------
11[[kelvin]]

                                  1

So it appears the units package equates kelvin to degC

Enable the Find/Replace option to work for math mode

It is possible one may want to find where the occurance of, for example, cos appears in a worksheet for whatever the reason.  If cos is not displayed in text mode, a "no matches found" message appears, even though it may appear in the worksheet 10 times.  It's almost counterintuitive. 

Although the help page explicitly states that The Find feature does not search content in 2-D Math notation , it would be nice if it did. 

Is it wise to load something like this into maple?  or is it always better to use a text editor first?

Of course with garbled characters it is unlikely maple would be able to execute something malicious but I don't know.  Usually Maple asks for autoexecuting permission. 

Incidentally the first time I loaded this into Maple the confirmation box this worksheet was created with a newer version of maple do you wish to continue (yes) and a blank worksheet came up with nothing saying there was problems (this made me think something executed)

Second time I loaded it, there were problems loading your worksheet message came up. 

I don't think there is anything to worry but I am curious.  Thoughts?

Thanks acer! 

Thanks acer! 

Unfortunately, Maple 12 is my go to version.  15 is not readily available for me and with 15 being the go to versions of choice for many users now, I'll probably be hardpressed to get many users to bother tackling the problem.  At least I know it works in 15.

I understand that a lot of improvements/enhancements were done to the HTTP package since 12 and that was probably one of them.  If it is a bug, I might be stuck.  Usually a workaround exists ... hopefully?

@Robert Israel just to confirm it works I had access to Maple 15 but for users of Maple 12 there is a subs bug that doesn't allow the substitution.

@Robert Israel just to confirm it works I had access to Maple 15 but for users of Maple 12 there is a subs bug that doesn't allow the substitution.

We could circumvent the issue Maple is having with a small proc so we don't have to keep redefining the graph

DrawGraph2 := proc (G, p) #specific to tree style structures
  uses GraphTheory:
  DrawGraph(Graph(undirected, G), style = tree, root = p)
end proc:

DrawGraph2({{2, 3}, {2, 4}, {3, 5}}, 3)

            3
         /     \
       2       5
       |
      4

We could circumvent the issue Maple is having with a small proc so we don't have to keep redefining the graph

DrawGraph2 := proc (G, p) #specific to tree style structures
  uses GraphTheory:
  DrawGraph(Graph(undirected, G), style = tree, root = p)
end proc:

DrawGraph2({{2, 3}, {2, 4}, {3, 5}}, 3)

            3
         /     \
       2       5
       |
      4

It must be the internet connection program I use that doesn't support the operations.

Not exactly sure what you mean. 

Not exactly sure what you mean.