Hi, i have a problem with Units; Basically my problem is that if i try to get the square of a variable with units only the value of the unit is squared not the units. For example:

> Z := 5*Unit('ft');

> Z^2 = 25 Units:-Unit('ft')^2

I dont know if my copy paste attemp is clear enough.... but basically the units are not being squared, the ^2 is placed outside the brackets and is not taken into account in further calculations. The result i am looking for is something like this:

I would like to generate a symbolic sum of the first "n" derivatives of a function.

For example, f = 1/(1-x^4)

sum(f^(n),n=0..3)

The response from Maple is not as expected.  The first term is:  -1/(4*(x-1)) and the subsequent terms are less recognizable.

If I use "seq" with the same syntax, I end up with a list that includes the function and the first 3 derivatives.

I have also tried:

sum(diff(f,x$n),n=0..3)

Hi all,

I want to calculate for example MultiInt(x,[x,y]) or MultiInt(y,[x,y]), etc.. in a triangle whose the coordinates of the three nodes are (x1,y1), (x2,y2) and (x3,y3).

Thanks for any help

Kamel

HI,

I wannt to ploting vector form, such as [a_i + b_j + c-_k =0].

This vetor is not matrix form but equation form with direction.

I also express magnitude of vector and direction of vector in plot.

For example, I define a vector, 3*i + 2*j + 1*k = 0, and I want to ploting in 3-Dim with direction.

Waiting everybody advise.

Thanks.

--------

Maple version : MAPLE11

Major : physics

Hi there,

I was woundering if there is a function implemented in Maple11, where I can enter a function and it's domain, and the output is the range. For example:

Entering f(x)=x^2, and the Domain x in (-1,2), I would want Maple to tell me that f(x) is in [0,4).

Is there such a function implemented? I need this quite often, most times on functions from R->R, but also more general for functions from R^n -> R^m. I know that in some cases you could...

I was wondering if there's a simple way to add something like an interpolation loop to a procedure. For example, say I have a function of 2 vars which is expensive to compute, f(x,y). I can use option cache to speed up points which are already computed, but is there an easy way to interpolate between them using ArrayInterpolation? That is, if f varies on scales of order 1, if I have calculated it at 0.1, 0.2, then It can be guessed with a spline at 0.15 accurately enough. What...

The question is to find the area bounded by x = 0, x = 4, y = 0, y = 1/(1 + x6).

I am assuming I am going to use int, but I don't really know where to go from there.

dear community

I have  problems 1): in solving "rational difference equations" in Maple.

what is the code for solving this kind?

2): plotting difference equations

3):openf and printf command" how I make my results in the same folder as a table?"

Thanks

Help_Lplot.mw

I cannot get the proc Lplot to work in the worksheet above. Will someone please help?

Hello,

When I type "hypergeom([a+1,b+1],[c+1],z);", Maple switches "[a+1,b+1]" to "[b+1,a+1]" when using the 32-bit command-line interface.  This does not happen when using the graphical java user interface, nor with the 64-bit version...

Why does this happen?

-- Regards,

Franky

I'm having trouble using the Jacobian command for predefined vectors. I have defined several 3x1 matrices, concatenated them to a 12x1 matrix, then when I'm taking the Jacobian I get the following error:

Error, invalid input: VectorCalculus:-Jacobian expects its 1st argument, f, to be of type {Vector(algebraic), list(algebraic)}, but received Matrix(10, 1, {(1, 1) = v[x], (2, 1)...

Can anyone tell me what I'm doing wrong here?

Thanks so much in advance!

I need to find the eigenvalues for a matrix using the power method in Maple 14 . I want to iterate Xn+1=PXn until it has reached a certain degree of accuracy where P is my matrix and X is a column vector. 

I have tried:

> while(abs(X1-X0)>0.0000001);

> do

> X1 := X0

> X1 := PT.X0

> end do;

but I get this error: 'Error, unable to parse'

Please could someone help?

upload.mwDear all, Can someone find what my mistake is?

Hi to all, 

I would like to know where if I could plot two functions (both are computed by "if statements") on the same graph and could maple read "where" like VB (if ...where...end if)

Your help is appreciated