Dear all! I have 2 different lists:

ch1 := [[0.1e-1, -.56], [0.25e-1, -.57], [0.35e-1, -.555], [.115, -.43], [.16, -.3], [.195, -.24], [.28, -.155], [.315, -0.25e-1], [.32, -0.85e-1], [.41, .19], [.425, .11], [.425, .425], [.425, .43], [.425, .44], [.43, .12], [.43, .265], [.43, .405], [.43, .445], [.435, .295], [.435, .38], [.465, .44], [.5, .29], [.505, .31], [.505, .395], [.51, .37]];

ch2 := [[0.3e-1, -.5], [0.5e-1, .575], [.11, .495], [.15, -.295], [.19, -.33...

I want to plot the data with some error bars. I have tried the errorbar( ) function but it doesn't work. May I know what is the problem ?

Hi,

I have a quick question. I'm using OpenMaple under C and I am calling the "latex" function. I cannot get its output :( When checking the textCallback function, I get the command back as output (latex(%)). How could I solve this issue?

Regards,

Remus.

hello

I need help, I have two arrays a{1,6,0,-9,13,15} and b{6,-3,10,16,6,1}. How create program, which would bring the two sorted arrays of elements of the rising and descending?

I don't know why maple can't solve this PDE

> restart;

> PDE := 4.2000*10^6*(diff(u[1](x, t), t))-.445*(diff(u[1](x, t), x, x))+4200.*u[1](x, t)+464.82-20836.*x-15.832*t+4.0442*10^5*x^2+2953.7*x*t+0.14631e-1*t^2+9.6788*10^6*x^3-2.7139*10^5*x^2*t-.99786*x*t^2+0.15902e-4*t^3-1.0085*10^9*x^4-6.3082*10^6*x^3*t-1069.3*x^2*t^2-0.15006e-1*x*t^3-3.9073*10^(-8)*t^4+2.3478*10^10*x^5+2.5874*10^8*x^4*t+1.2265*10^5*x^3*t^2+2.9028*x^2*t^3+0.17521e-4*x*t^4+1.9407*10^(-11...

I've been trying to find a way to plot error bars in a polar coordinate system. Using ErrorPlot i can display my data with error bars in cartesian coordinates but the usual option 'coords=polar' doesn't seem to be followed. Perversely, the option 'axiscoordinates=polar' does work in ErrorPlot, so i just get a cartesian plot of my data sitting on top of a polar axis. Is there a way to plot my data with errors in a polar basis?

I have had this problem on all of my computers ever since Maple 11, I believe. No matter the number of points in a spacecurve or DEplot3d command, the graph comes out with gaps. For example, this is the output from Maple 14:

Hi!

Can anyone help me to write code that validates an answer to a equation of the sort a*x^2=cx.

There will be two solutions to the given equation and I don't know how to write it so it takes in and separates the two answers from the student and validates them.

Best

Mats

Hello everyone.

When exporting by an multibody attachment, the name of the variables exported from a revolute or translational joint, are set by default, like "s_P2(t)", "theta_R", etc. If I wanted them to be named "x(t)",... , what will I have to do?

Is it possible to do directly, without using an alias?

Hi,
Consider the following DEQ:

x*y'+2y=1

Maple can solve this without problems with dsolve. But I want to use the Mellin Transformation for this, similar to the more common laplace transformation. The last step, the transformation back to the x-domain, does not work. Any idea why?

restart:with(inttrans);
mellin(x*diff(y(x),x)+2*y(x)=1,x,s);
solve(%,mellin(y(x),x,s));
invmellin(%,s,x);

Thanks

Dear Maple Users

I have encountered some strange behavior when trying to copy a vector:

In the first section I define a vector a and try to copy that vector and assign it to an variable b. Then changing the first coordinate in the copied vector b actually change the original vector as...

main.mw

Please, start attach from beginning till that place where 

Is this the best way to extract the argmin with "minimize"? Thanks for your suggestions.

minimum := minimize( x^2, x = -1 .. 1, 'location' = true );
y_min := minimum[1];
x_argmin := rhs(op(op(minimum[2])[][1]));
                       0, {[{x = 0}, 0]}
                ...

Code
 

L:={NULL}:
for q from 11 to 100
check:=0:
for p from 1 to 200
n:=length(p):
for i from 1 to n
a[i]:=p[i]:
s:=sum(a[i],i=2..n)
if p-a[1]-10*s*modq=0 then
check:=check+1:
if check=200 then 
L:=L{op(L),q}:
print(L);

and the pseudocode:

1. L is the empty set
2. for q from 11 to 100
3. check=0
4. for p from 1 to 200
5.  find n, the number of digits of p
6. for i from 1 to n
7. find a[i], the ith digit of p

Dear,

How could we know which command to use to do a specific task such as:  "convert boolean value to {1,0}" . I know we could use evalhf() but if we search with keyword "convert true false to 0 1 " in the Maple help then we may not find the right command

Using the Online Help is a solution but I want to know an offline solution since I am not always with the Internet. Did anyone wrote a summary sheet with the content such as : (i.e a list of all commands with keywords for searching)