@Kitonum 

Thanks. But this does not work on all cases. For example

Separation( exp(x+y))  should return [exp(x), exp(y)]

I'd also like it to separate sqrt(x*y) to sqrt(x)*sqrt(y) with ofcourse the assumption that both x,y are positive. But your function is still very useful.

Do not use 2-D Input mode.

It is not Maple code.

Stick to using pure Maple code.

@vv 

I see. So Maple moved the whole 3*(y^2+1) to the left side. Ok. No problem. But then why it did not do the same for y'=3*x*y^2  case? Since one can't write Latex here, I attach image

So following same logic, I would expect Maple to give solution y=-1/(x^3+3c). 

Again, both solutions are correct. But I was trying to see if I figure what Makes Maple decides which terms to separate.

@Rouben Rostamian  

Why numerical solution when it can be solved analytically?

sol:=pdsolve([pde,Bcs,ics],u(t,x)); 

sol := u(t, x) = sin(x)*exp(-t)

@tomleslie

"fopen() is successful so carry on. Why/what would you check?"

humm... How would you know fopen() was successful in first place in order to "carry on"? That was my question. Maple help does not show one single example of how to check and what to do. It just says fopen raises an error. Ok. How does one know this in a script?

No eyes. Non interactive.

Imaging one is blind. How would they know fopen has failed? Also imagin one is also deaf so the can't hear an error beep coming when an error is printed on screen. That is what I am asking.

You showed one method is to use trap. Ok. So one should not check fd? Is using trap/catch the official method to check for fopen failing? Is this documented any where? I have not seen one example in Maple help using fopen() doing any check on status of the open. Using trap or otherwise. But if using trap is the correct way in Maple to check for fopen, I have no problem using it.

 

@vv 

" the argument of value should be a label; you have probably unchecked "Show equation labels" In Tools > Options > Display. But even so, value(...) executes correctly after pressing Enter. "

That is correct. I turned off labels. Labels are stupid way to write software. So I turned it off. I do not use labels. I do not want to see labels. I want to just see plain old fashioned Maple code in front of me.

But even if I turn lables on. How is this going to help me? I still can't copy paste the command from the help page to my Maple worksheet.

Maplesoft wants to push 2D and document mode on us. They can keep Maple then. I am done with Maple. There are other software to use.

This has been asked for 100 times. Maple simply wraps things to fit the window with. There is no option in Maple make it not do this.

Maplesoft is busy with making cloudy things to have time to fix this basic usability issue.  see for example

http://www.mapleprimes.com/questions/220807-How-To-Make-Maple-Worksheet-Display

http://www.mapleprimes.com/questions/222218-Prevent-Long-Line-Wrapping-Split-GUI

One solution is to buy an ultra wide monitor. LG has 34" ultra wide monitor for sale at costco now for only $330. 

Maple have many other basic usability issues. Too long to list here.

@vv 

Thanks for the test. Little over my head. But you say

" convert does not replace a space by \n; it simply inserts some \n 's. "

But why?? That is the question. When one calls a function to convert expression to string, one does not expect the function to mess up with the input and inserts nilly willy extra characters in the string generated such as carriage returns.

I do not see how this is supposed to be OK. But again, I am no Maple expert. I am just talking common sense and from software design point of view. This behavior is not something one would expect.

And thanks again for the help.

@vv 

Thanks! This seems to have fixed it in my first test.

But I really have no idea what is going on. How can convert an expression to a string replace a space by \n? And is considered OK? I do not get it and I do not understand the logic behind it.  Maple does some really strange things.

Thank you

This is trivial to do in Mathematica. I have no idea why Maple can't do such a basic operation.

In Mathematica, the command is NotebookDirectory[].

@tomleslie 

Thanks for the workaround. But a user should not really have to do all this, as the whole point of ImportMatrix using CSV mode is that data is read in same format as in file. I do the same thing in Mathematica, and it handles this case with no problem.

You showed more problems as well in this function. This tells me that this code was not tested well by Maplesoft before releasing it to be used. This is not good.

I've asked the same exact question before.

"how to make Maple worksheet display lines without wrapping?"

http://www.mapleprimes.com/questions/220807-How-To-Make-Maple-Worksheet-Display

Maple have no such option. I solved it by going to Costco and buying the new LG very wide-terminal. It cost me almost $400. But now at least most of the lines do not wrap since my screen size now is very wide.

The above is the only solution I found.  Maplesoft is busy moving Maple to the cloud to be bothered with fixing such basis issues in its user interface.

You must have got 2017.1 also. I got it now as well. Check the version number and you'll see.

@Rouben Rostamian  

Thanks, that is the first thing I did ofcourse. But I am looking for what is new in 2017.1 and not 2017?

This is a minor release. Is one supposed to open each command to see what is new? Not practical. I am was looking for some list saying what have changed/added to 2017.1.

@acer 

thanks for trying. I do get the error each time, I rebooted my PC and confirm the error is there, I updated my post with screen shots.