I've programmed weyl tensor before with the physics package, now I need to program weyl tensor with this hodge star operator in the front, does anyone know how this is done on maple? Thanks in advance! (I should have attatched a photo which shows the desired equation in the middle line!)

I want to find limit of the function sqrt(x^2 - 3 x + 2) from the left of the point x = 2. I tried
limit(sqrt(x^2-3*x+2), x = 2, left)

I got the result 0.  I know that, the limit is not exits. How to explain the result of Maple?

Another example, 
limit(sqrt(x^2-3*x+2), x = 2, real)

I got the output 0.

With Mathematica, I see at here https://mathematica.stackexchange.com/questions/102981/limit-sqrt3-x-as-x-to3

Hello everyone!

In previous versions of Maple (e.g. Maple 2016) it used to be possible to use scaletorange and colorscheme options together as in:

densityplot(sin(x+y), x = -1 .. 1, y = -1 .. 1, colorscheme = [black, red, yellow, white], scaletorange = -.5 .. .5);

But Maple 2018 returns an error:

Error, (in plots/densityplot) the scaletorange option cannot be used with the colorscheme option

Why is that and can one work around this error in any simple way?

Dear all

A question seem difficult to get an answer by hand, we need a few lines code to get the right answer.

If one roll a die  N times, we get a sequence of N numbers, the number of dots on top on the first roll, the number on the second roll, and soon.

How many times ( N) do we have to roll the die to have probability at least one half that all six numbers appear in our sequence

Many thinks

Dear all;

Let

b[n]+b[n-1]+b[n-2]=0, for all n greater or equal 3

b[1]=-1;

b[2]=0

b[0]=1

How can we deduce the value of this sequence b[n] for all n

thanks

Download maltoxo_sens_-_Copy.mw

  Y'a t-il des suggestion de résolution de ce qui suit? merci.

a) On pose F(-1,0) et F`(1,0) les foyers de l'ellipse E, on veut déterminer son équation implicite f(x,y)=0, 
    des points A(x,y) sur l’ellipse en utilisant la description bifocale et sans utiliser Maple.
  b) Utilisez la commande implicitplot de Maple et le résultat de a) pour tracer plusieurs ellipses sur
    le même graphe en variant la valeur de la constante C,(la somme des distances aux foyers F, F’ est
une constante qui est C).

Traduction:

  a) We put F (-1,0) and F` (1,0) the foci of the ellipse E, we want to determine its implicit equation f (x, y) = 0,
     A (x, y) points on the ellipse using the bifocal description and without using Maple.
  b) Use the command implicitplot of Maple and the result of a) to draw several ellipses on
     the same graph by varying the value of the constant C, ( FA +F'A = C ). 

     Give at the end a Maple procedure that generates this ellipse.

Hello there,

I'm trying to write something like: dsolve=(myOde,numeric,method=rkf45,abserr=1e-7,relerr=1e( -(7+x) ) ),

where x is a variable that updates every loop of my for loop (say for example x = 2). I'm basically trying to improve my accuracy each iteration of the loop.

Anyways, Maple doesn't like how there is a variable in the expression for relerr - it returns the command just as I typed it, not, for example, as

dsolve=(myOde,numeric,method=rkf45,abserr=1e-7,relerr=1e( -(9) ) ).

How can I achieve my goal?

Thanks!

with(plottools):F := proc (N) local a, b, L; L := NULL; L := sort([op({seq(seq(a/b, a = 0 .. b), b = 1 .. N)})]); return L end proc; F(6);
            [   1  1  1  1  2  1  3  2  3  4  5   ]
            [0, -, -, -, -, -, -, -, -, -, -, -, 1]
            [   6  5  4  3  5  2  5  3  4  5  6   ]
Ford6 := proc (i) local d, k, n, r; k := i; n := numer(F(6)[k]); d := denom(F(6)[k]); r := (1/2)/d^2; return [n/d, r], r end proc; nops(F(6));
                               13
for i to 13 do C || i := Ford6(i) end do;

display(circle(C1), circle(C2), circle(C3), circle(C4), circle(C5), circle(C6), circle(C7), circle(C8), circle(C9), circle(C10), circle(C11), circle(C12), circle(C13), axes = normal, scaling = constrained, color = blue, size = [800, 800]);

I need an example programme please help me i m beginner

Hello,

I've used maple to solve a bunch of differential equations symbolically and the equations are pretty massive and so I don't particularly want to type by hand again on MS Word so if someone can tell me how to copy to word so it appears in an editable equation format I'll be very grateful.

Kind Regards

Ben

I am new to Maple.

As a student, how do I install Maple on my PC? 

I need it to solve PDEs and ODEs.

Many thanks for your kind reply.

Hello there,

I have created a MAPLE document in a slideshow format.

Is there a way to print a copy of my presentation with header and footer included and in a format that fits on letter format paper or pdf.

Thank you for your help.

LL

I have 2 questions here

1st I want to extend this set Ug3 := {1, 19, 23, 29} by repeatively subtracting 6 fron its elements. first pass should give

Ug3 := (Ug3-~ 6) union Ug3  Ug3 := {-5, 1, 13, 17, 19, 23, 29}

Now I dont want to add any elenments less than 6 so -5 need to go

Second pass produces

Ug3 := (Ug3-~ 6) union Ug3                Ug3 := {-11, -5, 1, 7, 11, 13, 17, 19, 23, 29}

Obiviously no elements less than 6 to be added on second pass either.

At this point there is no further elements that could be added to the set.

I am looking for an efficient method. I can use For loops and if then checks. The sets grow in length quickly. Repetition lengths are 6, 30 210, 2310,... I use sets because the numbers get ordered automaticially. Are sets efficient or should I use some form of table?
 

I understand that Maple 2018 is now able to solve 3 independent variable PDE & BC problems in bounded domains through separation of variables by product and eigenfunction expansion.

My solution domain is (x,y,t), (i.e three independent variables) but I would like to need to use numerical integration.  Are there plans to make numerical integration for PDEs with three independent availables, and if so when is that facility likely to be available?

Melvin