Hi,

i need to fourier transform 2D data to obtain spectrum.

I have 2 columns time ans intensity in that time. in another words i need to

FT(Y(X)), where X,Y are vectors.

i tried fft(2,x,y,) but theres no x(y)

can you please help me? I.m newbie in Maple and i need a fast solution:(

thank you

M

Error, (in dsolve/numeric/process_input) received more than one indication of the dependent vars [Cr(t), chp(t), Csp(t),Cpp(t),Cl(t)]

I didn't use Maple TA myself, but I used a similar program, MyMathLab (from Pearson), and the main problem (and a question) that I have is following - entering any problem in MyMathLab (and Maple TA, I guess) verbatim in Wolfram Alpha produces the correct answer. So what is the point?

Test students' copying and pasting skills?

Alec

Hello All:

I have an if statement within a function. At some point, when the statement is evaluated I get an error message saying:

Error ... cannot determine if this expression is true or false: 0. < 59.92088005+55.46829645*ln(.4804980261)

The right hand side is obviously greater than zero, but somehow maple does not seem to recognize this. Furthermore, this appears in the middle of a while do loop, and similar if statements are successfully evaluated with a true or false conclusion up until to this particular check point.

Need a sample maple code for a CSTR with heat exchange in unsteady state (for start up).

of a code which solves coupled nonlinear ODE's (stiff)

Thanks

How do I use the math tutor to plot on the same coordinate system?

I am stuck on a problem with my homework.

It says to plot f(x)={2-x -3(greater than or equal to) x (greater than) 1

e^x x(greater than or less than)1

How do you plot them to show the e?

I am trying to solve a vibration problem with 40x40 and larger matrices. I am using "LinearAlgebra[Determinant]" function for creating the eigenvalues' equation. When the matrix is larger than 30x30 Maple gives an error "object too large". How can I avoid it? Regards

I have an expression k:

k:=n*(phi+ln(-1/(-exp(phi)+exp(phi)*p-p)))/phi:

and the two solutions of the following expression:

solve(n*p*(1-p)=(sigma)^(2), {p});

Now I want to substitute the solutions of the former for p in k.

Because there are two different expressions to account for, how may I tell Maple to return two solutions at once, without typing each of them extra?

Hello,

I would like to graph a piecewise parametric function:

1 < t < 2 x(t) =1.146967180*(t-1)^3-2.178399723*(2-t)^3+38.3612214*t+106.1461765 y(t)=.3047483217*(t-1)^3-.5750322227*(2-t)^3+10.1163822*t+444.0230985 2 < t < 3 x(t)=-.4672626810*(t-2)^3+1.146967180*(3-t)^3+45.2430246*t+92.3825701 y(t)=-.1402738345*(t-2)^3+.3047483217*(3-t)^3+11.9448719*t+440.3661194

.. and so on and so forth

I have searched and tried playing with the plot command but to no avail.

What does the command length( ) return when the input is a list? For example length([1,1]) returns 7, how does length arrive at this result?

I started with the following expression:

k := n*(phi+ln(-1/(-exp(phi)+exp(phi)*p-p)))/phi;

and two equations:

{p=mu/n};

{n=-((sigma)^(2))/(p*(p-1))};

Afterwards I carried out two substitution steps:

1. Substitute mu/n for p in k and store the return as j. j:=subs({p=mu/n},k);

2. Substitute -((sigma)^(2))/(p*(p-1)) for n in j.

You must be logged into your Facebook account in order to share via Facebook.

Click the button below to share this on Google+. A new window will open.

You must be logged in to your Twitter account in order to share. Click the button below to login (a new window will open.)

Please log-in to your MaplePrimes account.

Wrong Email/Password. Please try again.