445 Reputation

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6 years, 236 days
Maple is to me difficult. The first version I bought was Maple9, and it was more than 15 years ago. But, I couldn't use it, feeling it too difficult. But, three years ago, I thought Maple might be helpful to my study, and since then, I have continued to learn Maple. As I got able to read the Maple help, I think that I could get to use maple better now than before. But, I feel that I am a beginner yet.

MaplePrimes Activity

These are replies submitted by taro

@John Fredsted 

Thank you, but your code does not bring what I want.

Best wishes.


@Joe Riel 

Thank you very much. Ways you showed seem applicable to other
modifications of expressions.
Best wishes.




is just calling the name of the file. When you want to open it with xmaple you have to write as xmaple the name of the file.

Best wishes.


In my environment, with the following code in maple screen, I can open tempu.mw.

ssystem("/Library/Frameworks/Maple.framework/Versions/2015/bin/xmaple /Users/hiro/Desktop/temp.mw");

How do you feel it hard to read anything here?
Is it from the color of background, of white?
I hope that you remain in this site.
And, if possible, I wish the changes of settings including colors or layouts
could be left to readers of mapleprimes, and the layout of white character
and black background could be included in the layout.

As for the green arrow for inserting mw.file, it is fixed as for me.

I think that Bryon often appears in the following place.

So, the above place may be a better place.


If there is a function which makes "#" transparent, I think everything about what becomes a problem in this question is resolved.
And, for the change from transparent "#" to not transparent "#" and  its reverse, I think that there has only to be a check bottun for it in Preferences.

And, I feel the way pushing F5 or sift F5 sometimes unstable, with my PC regarding only one push of mine as pushing multiple times, or even though I pushed it, not responding to it. 


I think that it would be nice if there were links to some maplesoft pages relating to mapleprimes, in the top page of mapleprimes; such as the pages of programmes of maplesoft, and twitter of mapleprimes and a facebook page, if there is, of maplesoft.


The cause of the error seems to me that the same character P, in P:= in the procedure, and, in it of P[1] or P[2] is used.
If you change P in P:= brabra to q:= brabra, error does not occur.

local q;

Assigned variable q:= is regarded as  a local variable by maple, so
you don't need it as pointed out by Mr. John Fredsted, while in my
environment a caution message telling me I don't specify q as local appears. 

As for the reason why P in P:= and P in P[1] should not be the same character P, I don't know.


@John Fredsted
@Carl Love 

Thank you very much.
I owe all of you a lot. I will write later after I understand your codes.
But, your codes work well.

If I've gotten to be better in using Maple, it is due to people's, especially Carl's teaching it to me here, other than maple support's effort to answer to my questions. And, I'm sorry for rude writing in my reply
in the question in the orders of factors.


Thank you for your effort to improve the use of mapleprimes.
I hope spams will hardly be seen.

Thank you. Joe Riel,

Your post of frontend is very helpful to me to understand what
front end does.

@John Fredsted 

Thank you for telling me the way to use remove and select in an actual 
situation. I could learn a lot from your code.


Thank you for your answer.
Especially, thank you for having me notice that the form of omega^(sigma-1)*L, that is the form `^`  accompanied with `*`
cannot be substituted, but thinking of separating them, that is
omega^(sigma-1) and L, problems such as subs can be solved. 
Especially, in your second way using subs, this appears apparently.
That is, subs(omega^(-sigma+1)*tau*L=t, rhs(aa));
doesn't work, but your code works.

And, I'm sorry for not noticing what you were trying to tell to me.


@Joe Riel
Thank you very much. Owing to you, my code becomes shorter.
And, I'm sorry that I didn't notice that your code is perfect,
with me not noticing where to put factor.
lhs(aa) = frontend(collect, [rhs(aa), omega^(-sigma+1),factor]);
And, your explanation of frontend in the post was very helpful to me.


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