@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

Find all prime numbers from 1 to 300.