http://www.tiny9.com/u/Math5543

Fun interactive paradox about the MRB constant.

Comes with free Mathematica player.

I want to use the poset package on Maple 14 but am having trouble installing it. Could someone give me a heads up.

Thanks

Dear friends,

Here a toy version of my problem. I would like  to write several equations and to export all of them to latex. It consist

in three steps

FIRST  I would like to generate for

j1=0..2:

j2=0..2;

j3=0..2;

the equations(for all the combinations of j1, j2 and j3):

assume(a>0, b>0, c>0, d >0, Qs >0):

j1*a + j2*b + j3*c + k/d*X1 = Q1

I am unable to solve the following differential equation for u(t). I right-click and select Solve DE but it gives me an incomprehensible solution. Kindly tell me how what to do:

diff(u(t)^2, t, t)+`&x`(`&x`(alpha, u(t)), diff(u(t), t))+`&x`(beta, u(t)^3) = 0

The same equation in "String" notation:

"2*diff(u(t),t)^2+2*u(t)*diff(diff(u(t),t),t)+alpha*u(t)*diff(u(t),t)+beta*u(t)^3 = 0"

The same equation in D notation:

Hi, every body

I have a problem for 4 month ago. This problem is the label in figure. i want to put at label any experssion such as

x*, or x_r or line above x  so on ,

please please please help me

it is a good idea if you provide maple sheet to make it easy understand how use it

Hello,

I have a transcendental equation

equ := 2+(s+1)*exp(tau*s) = 0

where s is a complex variable,and the range of tau is tau = 0 .. 1, I want to plot the trajectory of every roots,namely,s, in a complex plane according to the variety of tau. I try to use the command implicitplot, but get a curve in real plane.

Can you help me?

Best regards.

Hello (again),

is there a possibility in MAPLE to draw multiple plots on a e.g. 2x2 grid (see image below). In Gnuplot this is feasible with the multiplot option? Is there a MAPLE equivalent...

Regards,

Tobias

Hello,

i'd like to fit data of a Matrix M with M[x][y] = z(x,y) to a general parabola of the form: z=a*x^2+b*y^2+c*x+d*y+e

I'd like to use the statistics[Fit] package. Reading the documentation this should work but it doesn't

Please try the following code as example:

with(combinat);
with(Statistics);
M := randmatrix(5, 5);
XYValues := convert(sort(permute([seq(1 .. 5), seq(1 .. 5)], 2)), matrix);
ZValues := convert(Flatten(convert(M, listlist)), vector);

phone_code_mprime.mw

given 2 pools of letters, i need a procedure to select from the list of 2 letter permutations the appropriate candidates (that are in the correct order).

permute produces a lot of candidates, but i need an english word formed in the correct order.

attached file should explain

thanks

i need to calculate the radius of an arc. i have that the chord lenght is 96 inches and the distance between the chord and the arc is 6 inches perpendicular from the center of the chord. assuming that i am working with a circle.... how do i calculate the radius of the circle????

Let f:Rⁿ  -> R^m a linear function i need help about a proc about matrix of the linear map Df(x),

our input will be n,m and f

such that,f:R²->R³ ,f(x,y,z)->(x+y,y+2z,x+y+z) and i wish resulting output with derivative matrix with respect to the standard bases in R² and R³

Though Maple provides routines to express integers or floating in different
integer bases the output looks not as nice as I want to have it.

And for example it does not work as expected using the 'simple ways' (while
for hex there is no simple way for floats):

  Digits:=16; # for all the following

  x:=frac(evalf(Pi)):
  x:= x* SFloat(1,-14);
              ...

This post gives equation of stability region of a Runge-Kutta ODE solver (Dormand-Prince45) as implicit domain equation and ODE-IVP.

Contents are:

• Runge-Kutta solver is implemented
• Solver is applied to test equation and growth factor is obtained
• Stability regions are defined by separating hyperplane (GF=growth factor=1)
• Stability regions are plotted by bruteforce approach (implicitplot)
• Boundary of stability regions...

Hi,

i try to use your code (i mean other way )   that give to me but it doesnot work. it give x[c] and y[r] at label.

i have maple 14 .

could you please help what is the problem?

last answer is wrtten by

It can be done with the labels option (see ?plot/options