Hello,

In multibodies system, there exists many kind of coordinates namely joint (or relative) coordinates and absolute coordinates. Moreover, for the joint (or relative) coordinates, it is possible to choose strict, simplified, or complete coordinates.

For the moment, i only find in the tutorials system modeled with complete joint (or relative) coordinates. I will give the example of a 4 bars mechanism. The kinematic scheme with this complete joint coordinates is the following :

@Carl Love  Thanks for your reply. Composition breaks down into  distinct ordered  k-tuples . Partition breaks down into all possible sums with no regard to order.

Example: composition (4, 2)    {[1,3], [2,2], [3, 1]}   allstructs (Partition (4) ,size = 2)     [ [1, 3], [2,2]] 

For the allstructs ( Partition (n...

Find all prime numbers from 500 to 600.

Good afternoon

I request you to help me out to input a column vector matrix of dimension 80x1 whose entries are 0.

would like to use point graph and line graph to show the graph

restart;

test1r3 := (1/2)*(-x+sqrt(x^2-4*y^2))/y;

n := 100;

for j from 1 to n do

aa[j] := subs(y=RandomTools[Generate](integer(range = 1 .. 10)),subs(x=RandomTools[Generate](integer(range = 1 .. 10)),test1r3));

od;

plot(<seq(1 .. n)>,<seq(aa[i], i = 1 .. n)>, style = point);

How do i "show region ranges" on mac. on windows you just press F9 but you cant on mac??

Find

A travel agency is planning a one-week trip to Italy that has an initial cost of $2,000 plus $1,140 per person. At a price of $1,400, 13 people will sign up. Past experience suggests that for each $20 decrease in the price, an additional person will sign up. Also, for each $20 increase in the price, one less person will sign up. What price (in intervals of $20) will maximize the profit? (Make a table and guess and check.)

I don't get how to solve this problem...

Find

In a pocket, we have balls number from to

Hello all,

I want to plot shapes, like circles, lines or elipses, and to shade some areas, for example, let's say I have an inequality, indicating a domain of all points above a line, or inside a circle, outside an elipse, and I want, for demonstaration for studetns, to shade with dashed lines or color these areas, how do I do that ?

Thanks !

I am using the ExportMatrix command to save matrices to .txt files. Is there a way to use a variable to automatically create the text file name?

For example (I know this doesn't work):

In maple 17, 

solve({b-a*sqrt(1+a^2+b^2)=a^2*(a*b-sqrt(1+a^2+b^2)), a-b*sqrt(1+a^2+b^2)=b^2*(a*b-sqrt(1+a^2+b^2))});

outputs

a=a , b = -a/(1+a)

If you set a =1  and b = -1/2 you will see this is not a correct solution.

Good afternoon sir,

I am M.Anand working for SRIIT, as Assistant Professor in Mathematics.

I request you to provide me the correct Maple commands to generate large matrices whose elements are defined in terms of i & j in piecewise function pattern for example

How to generate the matrix A where the elements a(i,j) are defined as

a(i,j)=2i    when j=i   and i=1,2,...,80

a(i,j)=0.5i  when j=i+2 and i=1,2,...,78...

Hello,

Maple_-_Upload.mw

See the upload for my worksheet.

When opened: Combine the first picture with the second picture and you will get the third picture, where the green filled box is a 'safe zone'. Now what I want is to find the intersection between the green line (=0.7) and the red line (the curve), which gave me two answers, as I wanted! No problem at all.

Now when the fourth picture is combined with the fifth picture this results in the sixth picture. So again I tried to find the intersection between the two lines (this time the green line with the blue line; I just name it to be sure that the idea is clear). But this time Maple doesn't give me the points of intersections. How come? I think it has something to do with the procedures, but I can't figure out what it exactly is.

I hope someone can help me out on this.

Thanks,

Frank