taro

470 Reputation

12 Badges

7 years, 251 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.

 

 

@tomleslie

[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.

 

 

@awass 

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.

@tomleslie 

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

@Kitonum 

Thank you for your teaching me.

I could understand your code, and it worked well.

Thank you.

 

Addition:

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.

 

 

 

@acer

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.

diff_3.mw

, 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. 

 

@tomleslie 

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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