taro

445 Reputation

12 Badges

6 years, 63 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

@Christian Wolinski 

I, at last, understood that {Non}(a) as is in your code.
Thank you for showing me the new code bringing the outcome in the form with O, to show  the role of frontend.

I haven't understand the last code yet. I will try to do.

taro

 

@vv 

Thank you for teaching me  that just factor after expand is enough.

taro

@Kitonum 

Thank you. At last, I have just understood  what you mean:  the use of expand being crucial.

taro

@Christian Wolinski 

Thank you for your instruction.

I am writing this message hoping that you would teach me a little further about your code.
Please see the appended file.
In the modification of from e_n_1b2 to e_n_1b3, convert/parfrac is needed.
But, with w^sigma being in e_n_1b2, using just convert brings out an error message.
So, I think you used frontend, to regard w^sigma as a single variable.
And, as seen in e_n_1b3, with frontend, the modified equation I wanted appear.

But, on the other hand, I can't understand why identical(w^sigma) should be contained in the option 
of frontend, for I think that the option of frontend means variables which are not regarded as a single variable.

 So, I wonder why it is there. And, I can't understand why option is like [{Non}(identical(w^sigma)), {}]);

I am very glad if you explain them to me. I'm sorry.

Dec_23_b.mw

taro

@acer 
@Kitonum

Thank you for kindly teaching.
If I couldn't have borrowed your hand here, I would be astrayed at how to begin maple again.

Thanks a lot.

taro.
 

 

As seen in

https://www.maplesoft.com/products/roadmap.aspx

osx 10.15 is not supported by maple2018 or 2019, yet.

Hello
This page might be useful.

https://www.facebook.com/Maplesoft/posts/10157599572441042

Take care

 

 

@taro

I noticed just now that I asked the same question in another post.
https://www.mapleprimes.com/questions/225321-Internal-Representation

Sorry.

@Carl Love 

Thank you for your answer.
And, I'm sorry for being late on writing this reply.

I began to study about maple again.
I found two things. First, I could use English better last year than I am writing now.  
Second is that I repeat the same thing as last year.
A few days ago, I found that seq(i,i=1..5) returns _EXPSEQ(1, 2, 3, 4, 5).But, as I can get its list by surrounding it with [  ], there seems no problem.
lprint(seq(i,i=1..5) ) ; returns 1, 2, 3, 4, 5,  which has no problem.

 

taro

 

 

@Carl Love 

Thank you for your explanation.
Surely, `or` is not Inert, as if it is so, it should need the command "value" to have the function executed.
`or` only has us need one more return, after `or` (A, B) returns "A or B."

And, thank you for the use of % in %subs.

 

 

@Carl Love 

I'm sorry. I don't understand anything about VV's question.
And, I can't write anything appropriate, but to write that `or` means symbol. So `or` (x,y) means just a sequence of
words of "or, x and y", leaving its evaluation to people who so wrote.

But, I have a question to you.

Can you please tell me how to use %subs?
subs(a = 0, x or y) is the output of

restart;
x := a=0;
y := b=0;
%subs(a= 0, 'x or y');

But, I can't understand what is done with its code.

 

 

 

 

@vv 

restart;
x := a=0:  y := b=0:
subs(a=0, x or y);

false

So, subs, which has only a function of incerting something,  as well as eval does not work, and
I cannot find any document about this operation of "or."
 

 

@Carl Love 
Thank you for your explanation of the meaning of "situations where something mathematical happens to e."
On the other hand, I understands what kind of outcome applears through using subs: first subs works so that 
the 0 is inserted into x's inDiff(sin(x),x), before Diff(sin(x),x) is calculated.

 

 

 

 

 

@Carl Love

Then, what do you think is the problem of VV?
I'm glad if you explain it.

@Carl Love 

Thank you for your teaching. I wish your further kindness to give me an additional answer.
I couldn't understand what you are writing in 1. So, I am very happy if you show me an example 
where something mathematical happens to e that has me feel it better to use eval rather than subs.

 

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