I tried the following, but did not get 0. Why not?

>restart;

>b:=3*beta*Pi*(3-4*cos(z)+cos(2*z))/(16*z);

>-b+sqrt(b^2)

I know I can do this by hand, but this is part of a larger equation which I narrowed down to this issue.

Hi,

I am having some problems when solving NullSpace when the matrix is somewhat 'complicated'.

Maple seems not able to find the nullspace.

Any hints or possible workaround?

Casper

nullspa.mw

how should i plot from the results of the desolve? i know i should use output=listprocedure,but i do not know how to use it. thank u,
i also have another question? what is the problem with my equations that have singularity ? i used maxfun=0 and stiff=true, but it does not make changes? should i change the initial conditons?maple.mws 

Hi all,

I 've been using Maple 13 and recentely upgraded to Maple 17. But the following code yielded correct results in Maple 13 but not in Maple 17( gives an error: there is no taylor series expansion, try series).

I think there is some bug or some problem with "mtaylor" of Maple 17. Can anyone verify this?

CODE:

=================

> restart;
> with(VariationalCalculus);
>
> interface(prettyprint = 3);
> with(LinearAlgebra);

Hello to you all. Pls. i just want to ask you guys about which package in maple can I use to solve nonlinear ODEs Also, can I use the Newtons Method?

Iwould like to calculate the inverse laplace transform of the expreesion which I call T.

< T:=tanh(s):

To do this I use the code "invlaplace" to solve it.

<invlaplace(T,s,t)

But it returns "invlaplace(tanh(s),s,t)".Done nothing.How to get its mathematical expression? I am really interested to get it.

PLZ help me in anyway as you can as I am completely stuck.

I wrote a procedure which rounds floats to a specified precision. I would like to apply it to a Matrix/List/Array/Vector that contains non-numeric cells as well as floats. I'm stuck at the type-checking stage.


# Round0 works on floats and lists and Matrices of floats:
restart;
Round0 := proc(x,n::integer:=1)
   parse~(sprintf~(cat("%.",n,"f"),x));
end proc:

Round0(1.23456789);
1.2

Round0([1.23456789,9.87654321],2);
[1.23, 9.88]

I would like to recolor a list of plots using Maple default values. I have produced a list of colors with the plots:-setcolors(default) command. However, the colors are returned as a list of Hex values.  I first converted the Hex values to RGB values and then attempted to adapt a procedure written by Joe Riel, named -recolor- (refer to Joe's answer from which this question is branched).

But I must have done something wrong.

The conversion from Hex to RGB...

Hi,

Our school is using a hosted version of Maple TA 9. We have a lot of questions in Moodle we would like to export to Maple TA. Is this possible?

Thanks in advance,

Henrik

Hello,
I'm trying to write a function which is calculating a B-Spline Function. Given is a knot vector U=[u₁,...u_m]. What i want to calculate know is the basis function of degree 0 which is defined by N_i,0(u)=1 if u_i <= u < u_i+1 and 0 otherwise. I tried to do this with two procs which are leading to the same problem:
procVec1 := proc (U)
m := nops(U);
N := [seq(0, i = 1 .. m-1)];
for i to m-1 do

An analog clock shows the time is 1:15:00.What time all the three indicators are going to meet each other?

kindly help me in defining 99 functions using a do loop... each function contains 99 variables... say y1, y2, y3,...,y99

Hi,

I am new to Maple (Version 17) and got some trouble with the solve command:

The Problem is, that Maple does not find a solution, allthrough there is one :-)

If i put a:=Pi/4 before the first commad, I get one solution, but i want to find the solution in dependence of 'a'.

Also i tried to remove the last equation (a>0...

How to find the sum of the series

sum((x^(3^n)+(x^(3^n))^2)/(1-x^(3^(n+1))),n=0..infinity)

under the assumptions x::real, x<>1, in a closed form with Maple?

it solve result in numeric but not in terms of t, why and where is t?

restart;

equation1 := subs(x=0.5,-(t*x+(1-t)*x+2*x)/(t*y+(1-t)*y+2*y)) –(1-exp(y)) = 0;

equation1fixedx := solve(equation1, {y});

restart;

equation1 := subs(y=-0.1,-(t*x+(1-t)*x+2*x)/(t*y+(1-t)*y+2*y)) –(x+0.08) = 0;

equation1fixedy := solve(equation1, {x});