2.A boat travels 8.5 m/s, 5 degrees West of North. The boat is traveling in a current that moves 3.9 m/s, 66 degrees South of East. How far, and in what direction has the boat moved in 2.2 hours?

3. he vector A has a magnitude of 8 and a direction of 78.5 N of E. The vector B has a magnitude of 13.5 and a direction of 24.5 S of W. The vector C has a magnitude of 13 and a direction of 61 E of S. The vector D follows the following relation: D=A+B+C...

i want maple to return only positive real roots of a cubic polynomial.

polynomial: x^3+15*x^2-25*x-29

maple command and output:

(op(select(t -> evalf(t) > 0, map(Re+Im*I, simplify(evalc([solve(x^3+15*x^2-25*x-29,x)]))))));

I am trying to plot a Linear Population Model using Maple, could anybody tell me what I am doing wrong. My plot is just registering as a straight line at 1.0 and I know this is incorrect.

>

How does one keep a literal subscript from being translated into a indexed subscript?

Keyboard shortcuts work fine putting in the literal/index characters in Maple 2D.  If one converts the view to Maple 1D the text shown is correct.  But, as soon as one makes a next operation, Maple converts all of the literals to indexes!!!!  What's going on?

While it seems one could just keep working in Maple 1D input, this makes no sense.  The whole purpose...

hey guys, i need to do a couple presentations where i need to present some animations of equations such as

f(x) := a*(2*x^3 + x^2 - 3*x)    a=1..10

the question is how can i take the animation provided by maple and convert it to a some sort

 of video file such as and .avi file??

I am having trouble figuring out how to input the following functions:

1. Use Maple to find (vector)T for the vector function r=(cost+tsint)i+(sint-tcost)j+5k

2. Find the length of the curve, r=(3cost)i+(3sint)j

I want to solve two equations with all roots.

eq1:=-7.506556000*10^(-23)*omega^12+2.243366854*10^(-78)*omega^34+3.651941282*10^(-50)*omega^25+1.145341958*10^(-105)*omega^41-3.837716260*10^(-102)*omega^40+9.952750000*10^(-10)*omega^5+2.520327960*10^(-113)*omega^43-5.961864252*10^(-98)*omega^39+2.934254874*10^(-60)*omega^29+3.877088344*10^(-109)*omega^42-3.482296310*10^(-82)*omega^35+2.846747460*10^(-123)*omega^45-1.089582984*10^(-70)*omega^32-5.927854900*10^(-48...

I was using maple the other day, and suddenly i found out my 3D graph turned into black, but when i save the file as pdf, it could show the graph. And also it doesnt affect the maple displays 2D graph. So i wonder how did this happened and how i fix it.

Hi,

I'm having trouble getting to grips with this problem.  I have a set of 21 objects A:={a,b,c,d,e etc} and I want to create another set B of length 10 consisting of some of the elements of A. I then want to carry out a test on B.  However, I then want to repeat the proccess for another set B and another and another until all possible set Bs have been tested. For example

A:={a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u} #This set is constant and should never change

Dear All,

Kindly help me plotting the following equation:

beta = 0.25

alpha0 = 0.2580   or 15 degrees

alphad = 0.545    or  31 degrees

Bmax = 0.7

alpha = 0 to Pi/2

B(alpha) = (1-beta-beta*cos((Pi*alpha)/(0.8*alpha0)))*Bmax      for interval     0<alpha<0.8*alpha0

B(alpha) = Bmax       ...

Hi, i am trying to create a breakpoint on my worksheet. But i cannot press the debug current operation icon. Is there some other settings that i must press before using the button? Please help. Thanks.

Hi, may I know how do i rearrange the matrix by shifting them please?

For example, i have a 9x9 matrix. I would like to shift the first column to the end (1..9,1) becomes (1..9,-1), and the rest of the matrix (1..9,2..9) becomes (1..9,1..8).

Please help. Thanks.

Hi; I am working on a package where the data mostly come in Maple records with a varisble number of fields with different names. At least one field in each record has a 6 by 6 matrix, the expressions of which involve the values associated with at least some of the other fields.

Occasionally I have the need to, say, apply a function to each of these fields. E.g., I want to substitute a value for a specific name; this name may show up in several fields and also will show up in the matrix.

ode1 := Diff(y(x),x$2) + (lambda-x^2)*y(x) = 0;

After put y = exp(-x^2/2)*y1(x) into above ode1

would like to find the solution of ode in terms of integration

in this example, it use z^(-lambda/2-1/2) = expa(-lambda/2-1/2)*log(z)

the example solution should be int(exp(...),z)

linearsol(ode1, y(x)); but return {}  nothing

Thanks a lot