If I have 

F = x + 2π_Z1~

Is there a function/operator I can apply to F which returns only x, discarding 2π_Z1~?  That is, I want to return only the base angle, and dump the added integer multiple of 2π term.

Consider a function f depending on a parameter k and a variable y

f:=(k,y)->k*s(y);

where s:=y->add(sin(1/y^i),i=1..1000000) is just some nasty function.

Now, why does it take a long time to evaluate f(0,y)? And how could I speed this up?

More generally, I would like to plug (varying) parameters into a function, simplify and then do analysis on the resulting function. How could I do that?

Pi^2*(c+(1+Pi)/Pi)^2+Pi^2)/((c-(-1+Pi)/Pi)^2*Pi^2+Pi^2);

                         2 /    1 + Pi\2     2
                       Pi  |c + ------|  + Pi
     ...

I have a equation which I want to solve with HPM method, it works this way that you put a series instead of the dependent variable, and make infinite linear differential equation out of your nonlinear, then after solving some of them that meet your accuracy and sum them, that makes the answer. Now I have many problems with this which I hope you may help me.

1. How can I programatically asssign result of a dsolve to the variable? for example when I have dsolve(diff(f(x...

At the start of my program I specify values for the parameters beta, Q and P. These values are used in calculations in the program. At some stage I then get a list from which I make a selection of elements that have positive imaginary parts. To illustrate. Here I assigned beta := 3; Q:=100;P:=100.

This is my list.

t1a := [VectorCalculus[`*`](sqrt(VectorCalculus[`*`](VectorCalculus[`+`](VectorCalculus[`+`](VectorCalculus[`*`](1440004, Pi^2), 9), VectorCalculus[`-`...

i find that modulo is (Im(M)+Im(N))/Im(N) but where is Im command in maple?

after tried the following package, also not correct, i guess i should use quotient and Im command

with(MTM):
with(LinearAlgebra[Modular]):

Hom := proc(M, N)
Mdim := Size(M);
M_n := Mdim[1];
M_m := Mdim[2];
Ndim := Size(N);
N_n := Ndim[1];
N_m := Ndim[2];
F := kontraHom(M,N_n);
B := kohom(N,M_m);
C := kohom(N,M_n);
D := Mod(F, B);
E := Mod(D, C);

I am using the LinearAlgebra package. The function SinbularValues returns the singular value matrix S as a vector, i.e.,S*<1,1,1..1>.  Is there an easy way to recover S, itself, from this vector?

Hello,

In Maple 15 "Document" mode, how may I create a 2D fraction as *text* (as opposed to mathematical input that Maple evaluates)?

Thanks,
Dave

Hello,

My name is Jonas, and i'm trying to do some calculations on bending of a aluminium frame. Now i'm really confused why it wont plot! 

I attached my maple file. I hope my question is clear! 

Thanks in advance!

-Jonas 

vraagforum.mw

Download vraagforum.mw

i find a link http://en.wikipedia.org/wiki/Exponential_integral

in the link, is Ei(x) = Ei(1,x)?

is Ei(1,x) called exponential integral?

what is Ei(2,x)?

what is definition of Ei(y,x)?

Hi,

i have two equations from these following type

Hey, any help would be much appreciated! For any 2x2 matrix A, I can use GaussJordan(A) and it will return its reduced form. But I want to write a short program that will return the elemtary matrices used during the process as well. Any idea how to do this?! Thanks!

I should need to solve the transcendental equation below in the unknown  theta0(k+1) , I am not 

able (Warning...). Is there any trick to solve it ? Why in this case Maple output is:

Warning, solutions may have been lost ????

 

solve(0.4254750000e-2*theta0(k+1)/DT^2+(-0.2500000000*sin(theta0(k+1))*lambda1(k+1)*

DT^2-0.4254750000e-2*theta0(k...

I need to install Maple 8 for the Mac OS. Would you let me know where to obtain it? Thank you very much!