## Right click menu only some times works...

When I right click on an expression, I only some times get the context menu (under Maple 2016 in document mode, in Win 10).

Any suggestions - Anyone else having this problem? - I know how to use the long forms, but this is for students - for a brief exposure to Maple.

## Error, (in pdsolve/numeric/process_IBCs) initial/b...

hi

how i can remove this error?

thanks

Error, (in pdsolve/numeric/process_IBCs) initial/boundary conditions can only contain derivatives which are normal to the boundary, got (D[1](H))(x, 0)

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## CurveFittingProblem...

Hi,

I want to fit a curve to the function that you can see in the picture "maple4.png" (in the appendix) to determine two parameters. This works in Maple 2.
Unfortunately Maple 18 shows me an error. Can you help me with this problem?

Best regards

## I'd like to have some advice to solve a non linear...

Hi everybody,

I have to solve a system  of 3 equations in 3 unknowns.
One equation is linear while the others are not because of some  sinh(cste*unknown) term.
More of this the unknowns must verify some constraints of inequality type (but always very simple ; for instance “unknown <= value”).

solve fails because of the sinh terms
fsolve fails due to the inequalities

What Maple procedure do you advise me to use to solve this system ?
(at this stage I think advices could be sufficient ; if I keep coming up against the problem I will submit you a more detailed question)

## How can I send data from excel to maple in excel?...

Hello,

I'm trying to send data from Excel to Maple through Excel Add-in.

However, in Excel,  I can only create variables. I want to send these variables to Maple and access them in Maple.

I want to know how to send variables from Excel to Maple.

Thank you!

## Remove subscripts from functions in list and group...

I have a list of functions which looks like this:

`RR:={F[l, m-2, n-1], F[l, m+2, n], F[l, m+2, n-1], F[l-1, m+1, n-2], ...}`

I wish to remove the first and second arguments from the functions, so only leaving the third argument containing the n's. I then wish to group these remaining terms together to shorten the list. i.e.

```RR:={F[n-1], F[n], F[n-2]}
```

I have used the 'subsop' command with 1 and 2 specified as NULL in a loop, but I was wondering if there is a better way to do it? I like to avoid loops where possible and use some inbuilt Maple magic to make it tidier and (usually) more efficient.

-Yeti

## Maple cant dsolve the system of ode's...

me-equations-1.mw

Hello everyone.
I have a problem with solving a system consisting of 5 odes with 10 boundary conditions.
The system is solved without the boundary conditions,but once the bc's come in, maple just goes into a calculation loop that never ends.
I left it to run for a good two minutes but nothing changed.
No error nothing.it just cant seem to solve it.
7th and 8th bc's do look alike but are actually different because they have different coefficients..right?

I would really appreciate any help.thanks

Heres my code

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