The original function is 6x^2+5x-4/2x^2-7x-4. The equation of the line which is tangent to the curve at the point (0,1) is -12/35x - 1/35. Is this correct? I used the command Tangent(f(x),x=-3). The equation of the line which is normal to the curve at the point (-3,1). is 35/12 + 39/4 . Is this correct?

g(theta) := array([[cos(theta), -sin(theta)],[sin(theta), cos(theta)]]);
dg := map(diff, g(theta), theta);
invg := inverse(g(theta));
w := multiply(invg, dg);
w := map(simplify, w);

crossprod(-w, w); <- have error?

How to cross product between matrix?

As i know wedge product is cross product, so i use cross product

I am trying to plot a function and its horizontal and vertical asyptotes into one graph. I have been trying but unable to get the results I need. I am getting too many Maple errors. What is the correct way to do this? The function is : 6x^2+5x-4/2x^2-7x-4. The asymptotes are y=3,x=-1/2,x=4.asymptote_and_functi.mw

Hi,

I would like to plot three dimention using plot3d,

How to make label using plot3d. If i assume the label is [a,b,d] how to insert in plot label

could you please help me with provide Example.

when i type in the command plot3d(sin(x*y),x=-Pi..Pi,y=-x..x) maple keeps returning error. why is that so?

Good morning,

I want to  to show the 2-simplex (in R^2) obtained from the inequality

x+ y+ z < = 12*a

 with a:=1;

x, y, z  >= 0.

(the angles of the triangle are (12,0,0), (0,12,0) and (0,0,12) )

The CORE of a cooperative game, is the set points that additionally satisfy the system

x+ y >= 6

x+ z >= 6

y + z >= 6

Hi Everyone,

I'm wondering if anyone here has had a similar experience.

I assign Maple projects to my students in table format.  They do their work in the first column and I write my comments in the second column.

I noticed that while I grade a worksheet (Maple 14 on a Windows 7 laptop), Maple becomes very sluggish.  I started monitoring  Maple's memory usage while editing.  When I open the file, the memory footprint is roughly 60,000K....

I have the simplified version of what I want to do:

restart: with(LinearAlgebra):
d:=4:

product(MatrixExponential(I*Matrix(d,{(l,l)=1})*A[l,l]),l=1..d):

 

But I get the following error:

Error, (in Matrix) integer indices required for Matrix

Help appreciated.

Hello friends,

I would like to obtain the "n" for which the second column reaches its maximum and minimum (in the case of my example below, n= 5, 11 and 17 (for -10) and n = 8 and 14 (for 10))

restart:
interface(rtablesize=20):
Matrix([  seq([ n,round(10*sin(n)),round(10*cos(n))], n=1..20)]  );

How can I do that?

Thanks a lot for you attention,

Jean-Jacques

Hello,

I use the following commands to generate some complex numbers:

equ := 2+(s+1)*exp(tau*s) = 0;

a := [0, .8, 2*Pi/(3*sqrt(3)), 4*Pi/(3*sqrt(3))];

for i to nops(a) do

   evalf(solve(subs(tau = a[i], equ), s));

end do

then maple output four complex numbers. I want to get a list which contains the four output complex numbers,how can I do that without retyping the output numbers manually?

By the...

I am trying to use Maple 14.01 for implementing the computation of some cooperative game solutions with transferable utility.

As a first step for computing the CORE, I need to be able to draw the 2-simplices ( a triangle in R^2 with vertices (1,0,0), (0,1,0), (0,0,1) and 3-simplices ( a tetrahedron  with vertices  (1,0,0,0), (0,1,0,0), (0,0,1,0), (0,0,0,1) ). Certainly, I would like to be able to rotate and to visualize from different angles the figure.

restart:
with(LinearAlgebra):
with(ArrayTools):
with(Statistics):
randomize():
with(plots):
with(combinat):

n := 100:
nstock := 7:
corr := .8:

R := Matrix(nstock, nstock, proc (i, j) options operator, arrow; `if`(i = j, 1, corr) end proc):
CD := Matrix(LUDecomposition(evalf(R), 'method' = 'Cholesky'), datatype = float[8]):

ev := [seq((1/5)*(rand(-3 .. 4))(), i = 1 .. nstock)]:
st := [seq((rand(1 .. 2))(), i = 1 .. nstock)]:

A small question:

When I send the following command, I can see the matrix of 10 x 2:

Matrix( [seq( [ n , sum( evalf(1/(n+1)), k=(1/3*n)..(2/3*n) )], n= 1..10)]);

However, when I want to evaluate for  n=1..50.. I cannot see any numbers but only a description of a matrix.

How may I can I see the matrix for n=1..50?

Thanks a lot for your attention,

Jean-Jacques

Hi; every body

i have a problem with fsolve using fours equestion. i use fsolve to slove four equestions and it doesnot give any soltion even if i determent the period of solution as follow,

x1=0..3, x2=0..2, x3=0..1/2, x4=0..5.

i have increased the digit to 100 but it still does not give solution where i am sure there is solution in this interval.

I am looking to create a list-of-lists with all the combinations of 1..7.
The order is not important so for example [1,7] [7,1] should only return [1,7]

ie

[[1],[2],[3],[4],[5],[6],[7],[1,2],[1,3],[1,4],[1,5],[1,6],[1,7],

[2,2], [3,3], [4,4] ......................
[3,2]...................
.......
[7,2].............

[1,2,1]........

[1,2,2].......     ]

I am no sure I am explaining...