Hi all.  How do I plot sin(x) such that only Pi/2, Pi/, 3Pi/2 and 2Pi appear on the x axis and the values 0, -1 and 1 appear on the y-axis and the axes x and y appear at the appropriate axes?

 

Thanks.

 

 

Very simple question

 

I want to plot the function y = f(x) but I want the axes to appear rotated (as I show in the picture)

HOw can i do this??? 

 

Thanks a lot!

 

 

 

If we run the below code we will get a plot of a pure unit root and the serial correlation parameter for a pure unit root

My question is why do we have such a large amount of serial correlation in a process that is supposed to be random?

I ran a simulation and found that the average serial correlation for a 100 pure unit roots was 0.941

It does not seam right.....am I doing something wrong here?

I thought the basic definition of a random variable was serial correlation=zero.

 

Hello everyone,

I can't succeed in obtaining the complex conjugate of a function like this:

 suu:=x->( e^(-Iq(x)b)*(cosh(q(x)*b)) )^2 - I*sinh(q(x)*b) * e^(-4iq(x)b)

where q(x) is:

q(x)=sqrt(2*m*(V-x))/h

and m, V and h are respectively mass of electron, 1 eV and Plank constant /2 pi.

what I need is |suu(x)|^2 (where the * stands for product and not for complex conjugate!) but succeding in obtaining the complex conjugate of the function wold be enough.

 

Can you help me?

Hello:

I am using Maple11 for an Adv. Computer Applications Lab.  I am being directed to use the "implicitplot" function to plot a polynomial, and also plot a previous function that used the "spline" command to plot it on the same graph. 

Can someone please offer a suggestion?

Also, for the polynomial. how do I find all "x,y pairs? " I used the "solve" command to evaluate for 'x' and then 'y'. 

Is this correct?

Hello there,   the attached worksheet gives several examples of how to create implicit plots without commands and with commands.  

 

Howdy,

I am making a maplet that guides a user through crafting a Taylor series equivalent of a function. Obviously this involves finding a formula for the nth derivative of the function. Can Maple calculate this?

I need help with a coursework question. Would be greatful if anyone could help!
the question is: solve this x[i-1] + i*x[i] + x[i+1] = i where i=1,2,...n and x[0] = 0. Give your answer in decimals.

wat method would you use to solve these equations? the code I have put in is:

x[0]:=0:
for i from 1 to 3 do:
  eq[i]:=x[i-1] + i*x[i] + x[i+1] = i
od;
eqns:=seq(eq[i],i=1..3):
sol:fsolve({eqns});   assign(sol);

am i on the right path? is there anything i am doing wrong? if so, what is it?

I am multiplying an n x n matrix by an n x 1 matrix of unknowns, y(x_i), to get the result of my particular solution.  How do I create an n x n matrix with a 3 term diagonal?  For example:

b   c   0   0   0   0

a   b   c   0   0   0

0   a   b   c   0   0

0   0   a   b   c   0

On top of all the serious problems in producing questions for Maple TA, we have to contend with silly bugs like this: $a=0; $d=0; $b=$a+$d; $b is given the value -0. This looks ugly and may cause confusion if it's used in a question. I've got round this by setting $b=int($a+$d). Is there some reason why -0 is a valid result for 0+0, or is this just sloppy programming?

Hi all,

can someone show me the steps of how to do it? one of my points is a decimal, do i need to revert it to a whole number?

hey,

does anyone know how to find a cross multiple of 2 del vectors (delf and delg)?

they each have 3 variables x.y.and z.

thanks

 

i been stuck on the attached files for days and i'm stuck on the regression line