Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

Will an older version of AEM (e.g., AEM 14) run with a newer version of Maple (e.g., Maple 16)?

Hi all,

Is there a quicker way to find all unknows from an expression?

unknowns.mw

Say I want a list contains ALL parameters. In this case, it would return

[w1,w2,mu,tau[2],tan[3],tan[4],eta[1],eta[2]]


Is there a way to do this?

Thanks!

Casper

As an intermeditae result I get from maple

A*x^beta = R-1/((y/A)^((1-beta)/beta)/(A*beta))(1-t)

It is obvious, that two fractions can be reduced by (1-t).

I could not reach this with simplify, solve, factor, expand, ...

Any idea?

 

In addition in the numerator (1-t)^2 is possible. How do I get this?

Thanks for any help !

Hi all,

I have a little problem.

I need to let maple solve: int( diff( u(x), x$2) * v(x), x=0..1), where u(x) and v(x) are arbitrary single variable real valued functions. Moreover Maple should consider v(0)=v(1)=0 while doing integration.

Maple is returning the integral as it is. I think some how I need to force maple to use integration by parts but do not know how?

I know maple knows: int( diff( u(x), x$2), x) = diff( u(x), x)

test.mw

Hi all,

Here is the problem, I will try my best to describe it:

 

Firstly of all,

 

log(p[j,c]/(1-p[j,c]))=mu+tau[j]+eta[c];

log(p[j,c]/(1-p[j,c]))=mu+tau[j]+eta[c]

In this system, the 'j' is a time varying parameter, and the...

pithe eight digits of your student Id number are used to individualise the questions. they are labelled a1a2a3a4a5a6a7a8a.. all non interger outputs should be to 3 decimal places. question 1_ depending of your own value of a8, write a program that performs the calculation below:

a8             ...

I purchased Maple 12 some years ago and I never used it. I want to download it to this new laptop and don't know how

Hi, I need help with graphing a certain logistics population model for an initial population size that is equal to 1.

dy/dt = k(1 - y/M)y  k=2 M(t)=10e^-t/5 +3(1-e^-t/5)

So far I've worked out the values to input, but I don't know how to write it in Maple.

I know all I have to replace is the M in the dy/dt equation with these 2 values.

M(0) = 10

M(t goes to infinity) = 3

 

Dear friends,

I have a basic question concerning Maple 15 (X86 64 LINUX). In fact it is so simple it is almost embarassing! Here it is.

When we do integration in a basic calculus class we learn that when integrating polynomials and series the constant that appears during the integration is usually taken to be zero, as polynomial and Laurent series terms will only produce powers and logs, but no constant. Of course the choice of constant does not influence definite integrals, as it cancels.

i want to solve this system of equation in analytic way in maple.

sys[Dx(t)+.01(.1x(t)+.1)^2*a+.01*.03*y(t)(1+x(t))*b+.02*.01*c*(z(t)+5)*(x(t)+1)=0,Dy(t)++.01*.03*y(t)(1+x(t))*a+.01*.09*y(t)^2+.01*.06*y(t)*(z(t)+5)c=0,Dz(t)+.02*.01*a*(z(t)+5)*(x(t)+1)++.01*.06*y(t)*(z(t)+5)*b+.01*.04*(z(t)+5)^2*c=0]

in this system a, b,c are costant

Hi there,

I am trying to graph some plots that show Gibb's Phenomenon. I assume that starting with a step function is a good idea.

I know how to plot a step function but I have no idea how to plot the curve that includes the overshoot?

Any help on how to add this to a step function plot would be appreciated greatly.

 

Thanks you

I consider a polynomial $P(x)$ such that their coefficients are in $\mathbb{Q}(u_1,\cdots,u_k)$ where $u_1,\cdots,u_k$ are complex parameters. I use in Maple the command $galois(p(x),x)$ and I obtain a fixed Galois group solution.  Fortunately, when I give explicit values (randomly chosen) to the $(u_i)_i$, I obtain always the previous group as Galois group. I think that Maple considers that the $(u_i)_i$ satisfy no algebraic equations, that is the $(u_i)_i$ are generic....

Dear all,

I am trying to plot two funtions on one graph, but the axis values differ.  I want to plot the function below with

y-axis starting from 0.284087

x-axis starting from 0

The function is

plot(evalf((A(theta)*B(theta)),theta=0..Pi),  eq A

what to be added in eq A in order the function know that the value of y (axis) should start from 0.284087, and not from zero

Thanks in advance

A.Q

> restart;
> F := Int(sqrt((2.138+0.3e-2*exp((4.2^2-z^2)/d^2))^2-2.141^2), z = 0 .. 4.2) = .5;

I have used the fsolve command, it seems like there is a problem.

thank you in advance.

Hello

i have an ode equation which has a variable coefficient n. i solve my ode and the code gave me  single plot for specific n.  i want to draw these plots in one plot the code wich draw plot is :

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