I have a plot of a sinusoidal function(cos_phi) which changes with incrementing values of variable k. When this function goes above 1 or below -1 I would like to have the range of k for which it occurs outputed somehow. Would anybody know how to do this?

Hi,

I want to calculate a range.

eg. j=1...n-1 will use this equation

P(j,n):={((m/(2-1))(m/(2))^(j-1))/(2(m/(2))^(n)-1))}

j=n will use other equation.

How to create the command? I keep receive errors.

Thank you.

Lina

Hello!

Im a regular student and Math is a really difficult topic for me, and every once in a while i run into a problen that i am unable to solve. This time i would like to ask this commmunity for some help. Many thanks in advance.

The function itself is: y = sqrt((x^2-5*x+6)/log[10]((x+10)^2))

I was able to determine the domain (X), but i am having very big trouble with finding the range (Y). Also i should be able to do it with pen on paper, but so far i have wasted 2 days and many papers on pointless scribblig.

Could anyone please explain how could i find the range of that function and provide a step by step solution?

Maple is saying 'Error, Vector index out of range'. Can you see how maple executes all steps, so I can see where exactly the problem is?

I'm using fsolve in a loop, as an example can we find the first 10 roots of sin(x) and store then in an array.

restart; x:=array(0..10): x[0]:=0: for i from 1 to 10 do x[i]:= fsolve(sin(y)=0, y=x[i-1]..10 , avoid={y=x[i-1]}); end do;

Firstly this solve only 0,2*Pi, 3*Pi...Why does it skip Pi? also can I change the range to x[i-1]..infinity?

I have found very little help about the Generate command of the RandomTools package.I also have minor gripes about the syntax. And what better way to deal with these than to voice them?This is how I was able to generate random lists and random Matrices.

A list of 10 random integers between 1 and 100:L := RandomTools:-Generate(list(integer(range=1..100),10)); L := [47, 8, 46, 44, 9, 77, 59, 16, 1, 70]

Hello All ,

I have attached my workseet for reference.

I find it strange that the solutions calculated in optimization shows a value "X" but when i try a value greater than "X" , there is still a solution available which is very irregular.Since the optimization finds the value beyond which the solution for a6 is zero/negative.

I am not sure what is causing this problem or is it just the problem with the optimization.

Hi

I've got a list of inequalities

[x > 5, 10 < x]

and I need to plot the region by

plots[inequal]( [x > 5, 10 < x], x = 4 .. 11, y = 0 .. 1);

but I don't want to specify x-range.

So how can I get the numbers from inequalities and generate something like "x = 5-1 .. 10+1"?

Thx :)

I have an assignment that I am suppose to be doing in maple, I am suppose to plot the function f(x)=e^(x/3)sin(2x) for abs(x)<=2.... for part of it...

Ive tried multiple things in maple such as plot(exp((1/3)*x)*sin(2*x), abs(x) <= 2) but it keeps throwing me an error, any insight on how to get tis graph plotted would be great.

I am having trouble identifying all the possible roots existing in the range specified.

In the file attached i have a non-linear set of equations that are solved for "w" value specified...but fsolve provides solutions only at certain values of "w" , does it mean there is no solution for other data points ?...or is there a way to find out all possible solutions for each value of "w"

Question_primes.mw

I am trying to evaluate integral (-1/rho)*del (p)/del (x) dy within the limits y=0 to y=delta (x). For that I first evaluated (-1/rho)*del (p)/del (x) and stored it in res2. Then I tried to integrate it w.r.t dy within limits 0 to delta (x). I wrote the following Maple lines for the purpose:

Te := proc (x, y) options operator, arrow; T[inf]+(T[w]-T[inf])*(1-y/delta[t](x))^2/(1+2*A*H/delta[t](x)) end proc

PDE := diff(P(x, y), y)-rho*g*beta*(Te(x, y)-T[inf]) = 0

How may I program the following with Maple?

(1) Define the function:

H(p) := p * c1 + p^2 * c2 + p^3 * c3 + ......

(2) Now construct the following expression:

(1-p) [ v''' + 1 ] = H(p) [ v''' - 25 * v' + 1]

Here, v is some funciton of x.

(3) Now assume: v = u0 + u1 * p + u2 * p^2 + ...

and substitute this into the expression defined at the point (2).

I would like to set the range for a 3d plot. For a 2d plot, I understand I can do it at the command line or by setting the axes properties after the plot's been drawn.

If I use plot3d(x*y, x=-10..10, y=-10..10) for example, how can I look at those parts of the surface for which -2 < xy < 2 for example? I'd be happier with a command line option than a gui option but really anything would do.

many thanks!

Mary

Dear Maple UsersI am looking for specific answer, please see the following code, by trial and error I estimated proper values for 4 parameters, and corresponding equations become close to zero.However I need to make it automatically via maple, what can I do?

If I give ranges for parameters, there is no answer existed. Thank you.you can download worksheet from the below:

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