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6 years, 97 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 questions asked by taro

Hello people in mapleprimes,


I wonder if there is not any way to control the timing of substitution.

For  example,


brings mu := c^(a-b)/x. Please note that I made x unevaluated with '' around x, so that,

into the output of mu, the definition of x of (t^(1-s)+s^(1-2*s))^a does not appear.

But, in this case, when I typed the expression of


and clicked return, the definition of x is inserted into the result of 1+m, though

I want x to remain x yet.

Surely, if I wrote ''x'' in stead of 'x', 1+mu does not contain the definition of x.

But, in that case as well, when I have other following calculations, in those the definition 

of x should apear, which I don't like.


On the other hand, when I write as

x:=(t^(1-s)+s^(1-2*s))^a; x:='x';
mu:=c^(a-b)/x; 1+m;

surely as x is initialized once, the result of mu and 1+mu does not cotain the definition of x.

But, in this case, I have to write x:=(t^(1-s)+s^(1-2*s))^a; when I want the definition of x

to be inserted. Though in this case the definition of x is short, original relations I have and

haven't writen above is a little more complicated, so that to insert is not desiable.


Aren't there any good way to evaluate the value of particular variables and to leave them

unevaluated at each time I want to choose each one?


I hope I could have written my question as easly understood.

And, thanks in advance.






Hello people in mapleprimes,

I want to distribute limit or Limit to each terms of summation.


But, the output is not distributed one, but the same as the input, though

I want it to become Limit(f(a+h),h=0)+Limit(f(a),h=0), or


Isn't there any way for it, other than a trivial one that is



I hope someone will teach me.

Thanks in advance.



Hello people in mapleprimes,

I have an equation called aa in the following.

alias(`δx`=dx, `Δx`=Dx,`Δy`=Dy,`Δz`=Dz):

As for modification of this expression, I ask your favor to teach me.

Then, I want to change this aa to D[1](f)(x+theta__1*Dx,y+Dy)*Dx+D[2](f)(x,y+theta__2*Dy)*Dy.

But, to do so, I have to split aa into the one including -f(x,y+Dy)+f(x,y+Dy) between two terms

of aa.

But, as maple cancels these terms, I can't do so. How can I insert two terms, then

obtain the expression  D[1](f)(x+theta__1*Dx,y+Dy)*Dx+D[2](f)(x,y+theta__2*Dy)*Dy?


Thanks in advance.


Hello people in mapleprimes,


I have a question. I hope someone give an answer to me.




brings an error

Error, invalid input: limit expects its 2nd argument, p, to be of type Or(name = algebraic, set(name = algebraic)), but received ((x-a)^2+(y-b)^2)^(1/2) = 0

Isn't other way than the following?



Best wishes.


#Hello people in Mapleprimes,




#shows f'(x).



#shows just df(t1)/dt1, not f'(t).

#Can't I show f'(t1) not df(t1)/dt1?

#Is this a way peculiar to Maple?

#I hope someone could give me some hints.


#Best wishes.






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