Mac Dude

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11 years, 105 days

MaplePrimes Activity


These are replies submitted by Mac Dude

Eric, thanks. I really thought that Vectors were lists... lots to learn I have!

Anyway, good to hear that I am not completely astray with my choice.

...And I already have found today one specific task that I could program using a table rather than a Vector, storing references to Vectors in fact, in a Do loop. Works like a charm.

Thanks,

M.D.

@acer 

Ok, this will get me there. I fiddled around with the Matrix function and its documentation but wasn't able to find this way. Similarly with the angle-bracket notation.

Thanks,

 

M.D.

@acer 

Ok, this will get me there. I fiddled around with the Matrix function and its documentation but wasn't able to find this way. Similarly with the angle-bracket notation.

Thanks,

 

M.D.

Ok, so in this way I can expand the size of M. Is there also a way to append another matrix (which already exists and would have the correct dimensions)?

M.D.

Ok, so in this way I can expand the size of M. Is there also a way to append another matrix (which already exists and would have the correct dimensions)?

M.D.

@acer 

This may do what I want; I'll check it out.

M.D.

@acer 

This may do what I want; I'll check it out.

M.D.

Ok, this works, too, for my specific case. However, it appears that it simply has lowered the cut-off; if I scale my data down by 1E-8 they again disappear from the plot.

So I am ok with this particular issue, but I still see a bug, or undesirable feature, here. Is there any mechanism to file a bug report with Maplesoft?? I actually truly think this needs to be fixed.

Ok, this works, too, for my specific case. However, it appears that it simply has lowered the cut-off; if I scale my data down by 1E-8 they again disappear from the plot.

So I am ok with this particular issue, but I still see a bug, or undesirable feature, here. Is there any mechanism to file a bug report with Maplesoft?? I actually truly think this needs to be fixed.

Well, I ran the same sheet (my sheet, exactly the same that fails in Maple 15) in my old copy of Maple 12 and, guess what, it works there!!

I then ran your code in Maple 15, and it fails with the same symptom: nothing below 1E-8 gets plotted. The vector Y gets created correctly, it is the plotting that is fouled up.

So, smells like a bug in Maple 15 & I am pretty sure I run 15.01 at my home (here at work it is Maple 15.00).

What am I to do?? I don't really want to revert to Maple 12 (even though for this particular calculation I could). I consider this a rather serious issue. Is there anyway to get this fixed?? Or is there any hidden parameter that makes logplot ignore values below 1E-8??

Mac Dude.

Well, I ran the same sheet (my sheet, exactly the same that fails in Maple 15) in my old copy of Maple 12 and, guess what, it works there!!

I then ran your code in Maple 15, and it fails with the same symptom: nothing below 1E-8 gets plotted. The vector Y gets created correctly, it is the plotting that is fouled up.

So, smells like a bug in Maple 15 & I am pretty sure I run 15.01 at my home (here at work it is Maple 15.00).

What am I to do?? I don't really want to revert to Maple 12 (even though for this particular calculation I could). I consider this a rather serious issue. Is there anyway to get this fixed?? Or is there any hidden parameter that makes logplot ignore values below 1E-8??

Mac Dude.

Yes, these plot types reflect the spirit of what I am trying to achieve. The fact that I can rotate the figure is a bonus.

Thanks for the suggestion, I'll certainly study these & try to adapt them to my use.

Mac Dude

Yes, these plot types reflect the spirit of what I am trying to achieve. The fact that I can rotate the figure is a bonus.

Thanks for the suggestion, I'll certainly study these & try to adapt them to my use.

Mac Dude

Allright, I now understand the way to save the package (I guess I got mixed up with the savelib command while I should use the Save command from LibraryTools. Should be no issue). You are of course correct in mentioning the initialization file as a place where to set libname; that is exactly where I am going. 

I also see that .mla files appear to be binaries of sorts, so I assume I do have to maintain the source of my package separately (as a Maple worksheet). Correct?

Finally, do I understand correctly that the "savelib" command is used to >add< a module/proc/whatever to an extant .mla file (LibraryTools:-Save presumably overwrites)?

 

Thanks for your help.

 

Mac Dude

Allright, I now understand the way to save the package (I guess I got mixed up with the savelib command while I should use the Save command from LibraryTools. Should be no issue). You are of course correct in mentioning the initialization file as a place where to set libname; that is exactly where I am going. 

I also see that .mla files appear to be binaries of sorts, so I assume I do have to maintain the source of my package separately (as a Maple worksheet). Correct?

Finally, do I understand correctly that the "savelib" command is used to >add< a module/proc/whatever to an extant .mla file (LibraryTools:-Save presumably overwrites)?

 

Thanks for your help.

 

Mac Dude

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