## Is there a way to import worksheets from this webs...

The following website contains worksheets written in an early version of Maple.

http://www.yorku.ca/marko/ComPhys/

I would like to import worksheets 5.1 and 5.2 and work with them in Maple 2016. Is this possible?

Clicking on the worksheet id, e.g. 5.1, displays an .mws worksheet written in HTML which is not supported as an import format.

## How do I plot the DCT of a signal?...

I'm currently working on compressing audio files using DCT to remove the frequencies that only contribute marginally to human perception of the sound. To do this, I'd like to do as the attached image describes. Sadly, I'm having trouble plotting the values of the DCT-coefficients as done in figure 6.4 b) and d).

Any help would be kindly appreciated.

## how to solve dice problem...

write a maple to find occrunces of 5 in a die.

## type of function....

write a maple script to find whether the given function is one one or onto

## binary sequence ...

given a binary sequence of length n ,how many sequence of length n can be generated such that there are no 2 adjacent 0's.

## permutation in maple...

write a procedure to find the permutation of word LEADING considering {E,I,A} together .

## Homotopy Perturbation ...

Hello.

I am solving a problem using the homotopy perturbation problem, I have the code already but I don't know how to fix my f0(eta) = 1 - e^-(eta). f0(eta) is the assumed solution.

Thanks.

## Composition with seq...

Why don't these two work?

```(f@seq)(i, i = 1 .. 2);
f(i, i = 1 .. 2)

(f@add)(i, i = 1 .. 2);
Error, (in simpl/relopsum) invalid terms in product: 1 .. 2
```

I was expecting f(1, 2) and f(3).

## CAD Toolbox included in the students version?...

Hello,

I would like to ask, if somebody knows whether the CAD Toolbox is included in the students version and if not how much is it?

Thanks!
Fabian

## How to construct a Matrix ?...

Hi,

• N is the number of row, about 10^4 in real applications
• P is the number of columns (about 5)
• A and B are two NxP matrices
• C is the Nx(2P) matrix defined by
• its 2*k-1 th column is the k th column of A
• its 2*k th column is the k th column of B

What is the fastest and less memory consumming way to construct this matrix C ?

## Trig Identities (Sum-Difference Formulas) - How to...

I have a matirx

where ci and si represent cos(θi) and sin(θi), respectively. I need to substitute

What is the right way of using trigsubs command?

## collect with fractional powers...

```collect((sqrt(x)+y)^2, [x, y], distributed);
(sqrt(x)+y)^2```

I think this is wrong. Documentation says that collect supports fractional powers of the variables, so in this case collect should return x+2*sqrt(x)*y+y^2.

## How to block this change?...

Why when I write (9b2 - r2 - a2 cos(theta)2)2 maple changes to (r2+ a2 cos(theta)2 - 9b2)2 ? Would anyone know how to block this change?

Thanks!

## how to find relation R defined on set is reflexive...

write a maple script to find the relation on set s is

1)reflexsive

2)symmetric

3)trasitive