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8 years, 14 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

I think that some example in a worksheet might be helpful
to those who would answer your question.

@John Fredsted 

Thank you.
The problem I had was resolved owing to you.



Please write what you want to do more in detail.

@Carl Love 

Thank you.
Now, I understand well how map is used.
Thank you for giving me an example of using map.




[1/x, y, z] has list in op(0,[1/x,y,z]). So, what I thought at first was that changing that list to `*` would change

[1/x,y,z] to (1/x)*y*z. But it didn't. So, I used  op as op([1/x,y,z]). Then, the output I wrote at the biginning of this thread appeared, so I asked about it.

@Joe Riel 

Thank you for your answer.

I could understand well, and my problem was solved owing to you.




At Preferences->Open and Save, I think you can see radio buttons of Smart brabra.

Taking off the check at  Smart quotes radio button might resolve your problem.


Thank you for your teaching me. 
Your code with freeze and thaw helped a lot to me.


Thank you for your teaching me.

I could understand your code, and it worked well.

Thank you.



Thank you for reminding me of the use of evalindets.




@Carl Love 

What you write is quite right. 
On the other hand, the idea of "Office Hour" looked very interesting to me,
because where I live, there are no such things for classes.

At the time it will be opened, I will be sleeping because of the time difference of 12 hours 
between US and Japan. So, I think I will not attend it.





Thank you for your relpy.
I want the output to be shown as 

And, I have an additional question. I attached another file, diff_3.


, where I changed g(t,y) to y/t  at "i" expression.

Then, the outcome of diff becomes


But, I want this to be shown as 

or , where the latter is more desiable than the former.


@Carl Love 

Thank you for teaching (1,1,1) is a point of tangency.


@Carl Love

I think what is obtained with solve({x^2+y^2+z^2=3, x+y+z=3, w > 0}, {x,y,z}); is a circle on x+y+z=3, 
with the solution being the intersection of a sphere with a plane. 
{x=1,y=1,z=1} is surely one of such a point, but I thik it is only a point on a circle as the solution.
Why doesn't maple show the solution as a combination of x and y as a function of z, but showing only 
a point of {x=1,y=1,z=1}?


I think it's splendid for there to be an office hour for maple users.
I hope it will become a busy one. 



The op's question contains diff. 
I didn't know that the way of writing in Document mode is different from that 
in Worksheet mode. For example, I didn't know that f'(1) which I thought at first means diff(f(1),x) is actually expressing eval(diff(f(x),x),{x=1}) in worksheet mode. 
Additionally, I didn't understand the way of op's image's last line of his output. I couldn't understand why eval(..) = 2 could be obtained in one line.
And, I couldn't understand how you could get 1(1) in the above answer. 


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