So today I'm trying to play around with matrix norm until I've come across this "bug" (I assume)... with(LinearAlgebra): r:=Matrix([2*x,x^2,x^3/3]); dr:=Matrix(map(diff, r, x)); MatrixNorm(r,2); MatrixNorm(dr,2); My question is that why does Maple spit out "x" and "xbar" while obviously, it should all be "x". And what's the command to make it just in terms of "x"

Hi I have been given an example of a iteration exercise for my course however with very little accompaning rescources to solve it. I have tried numerous methods and most vary around my most recent attempt but still to no avail. None of my fellow students and myself combined still can't manage to solve this. I was wondering if you could give some insight as to what we need to do differently from what we are currently.

The question is as follows:

I am trying to plot a 3d curve using the "plot3d" command.  When I type in this command along with a function and x,y bountries (x=-5..5,y=-5..5) the x and y axis do not range from -5 to 5.  How do you fix this?  Also, is it possible for the z axis to be scaled?

Thanks

How do I fix this? i have to hand this assignment in by tuesday x_x. so far maple11 isn't giving me a decimal answer because it thinks e is also a variable. I was also having trouble trying to make composite functions but i found a little way around it so it isn't that much of a deal for me, however if you can point out my mistake to me and what i should have done instead, i will greatly appreciate it.

here's an image of my question+what i've done so far.

I am new to Maple and have some questions about the LPSolve function.

I have read the help about the function but still don't understand how it works.

I would like to use LPSolve to solve a matrix maximization problem.

Which is listed in the help as : LPSolve(c, [A, b], [bl, bu], maximize)

Can anyone give me an example of how this function is used and what math equation does it apply to?

Thank you for helping.

Hi,

I have the expression 1 - mul( (365 -n)/365, n=1..2).

 

What I want is to run the command with values of n always starting from n=1 - but also get values for n=1..3, n=1..5, n=1..i where i < 366.

 

I would truly appreciate help in this - I'm sure it's simple, I just can't make it work :)

 

Best regards,

Troels

"Equate - convert a pair of rectangular objects into a list of equations" How can I do the opposite? e.g. converting [a=2, b=4, c=3] into [2,4,3]

Hello, I want to solve a DE in x(t) where the RHS of the equation is a random number that changes with time. For example: x''(t) + 10 x(t) = f(t) where f(1)=1, f(2)= 6, f(3)= -2...etc. I tried to use ran() but it solves it for a fixed random number, while I want it to be time dependent . Is there a way I can do that? Thanks

I have a set of points and I want to display them in animation joined sequentially by line segments.  What's wrong with the following code?   Maple 11 gives the message    "Error, unable to execute seq"

traj:= [2,1], [3,2],[4,3], [6,8],[3,-2]

animate( plot,  [   [seq( traj[ k ],  k=1..J )]   ]  ,  J=[ 2,3,4,5] )

 

 

in maple 11, can anyone give me the right commands in making a plot coords for a set of datas..... my data is about number population of 4 species per month... the independent variable is time/month, while the dependent variables are the 4 species which are frog, spiders, snakes, and beetles..... any help will be appreciated...

How can I derive the root diagram of the SU(2) group by using the Pauli Matrices?

thanks,

dc

What I have done wrong?

 

eq := [piecewise(p(t) < prec, p(t) = C1*exp(function), p(t) >= prec, p(t) = C1*exp(function))]

 

params := [C1 = .2, prec = 100]

sys := DynamicSystems[AlgEquation](eq, inputvariable = [function], outputvariable = [p(t)])

But I recieve the following error message:

Error, (in DynamicSystems:-AlgEquation) cannot match the arguments to an appropriate system

Hi,

I am being given the following question:

 

Let f(x) = tan(sin x2)−sin(tan x2). Let n be the smallest positive integer
such that f(^(n))(0) 6= 0. Then n = __.

I am suppose to differentiate f(x) using maple to solve for n, that is to differentiate the function over and over again till I am able to get say f(^(16))=0.

However, maple gets very laggy after i tried n=10.

Is there any shortcut that could help solve this problem?

Best regards,

zn.

 

 

Hi, I have the following memory problem with maple 12 on mac (intel) which (I guess) should be known already, so hopefully someone can give me a quick solution to it: I can not rise via kernelopts(datalimit=blabla...) the soft datalimit above 500 mb. ("Error, cannot raise the datalimit above the hard limit". ) This is quite weird, since I have for sure more physical memory available than that... The suggested solution for this problem according to the maplesoft FAQ (only for PPC !?!) is to edit a file named mserver_ulimit ... unfortunately this does not seem to help !

My data file is a list, where each line is

[elm1,elm2,elm3,elm4].

 

I would like to read through and calculate the mean of all of the elm1's.

I would like to get a distribution of the elm1 data.  For example, in 800 lines of data, if elm1 takes on values 5,6 and 7, I want to know that there are 300 5's 400 6's and 100 7's.

stats[mean](data) needs the numbers inputted.  I even thought I could pull off the elm1's into a separate list, but stats[mean] won't take a list.

Any help is appreciated.