I would like to set a metric in its contravariant form before its covariant form but Maple does not do this operation.

Thanks!

Hello :)

When points of triangle, A, B, C (R^2) are given, how to find area of triangle; equation and radius of circle which passes traingle(A,B,C) and height(AH).

or where can i find information about how to do this?

thank you so much:)

How to get tangent angle between two curves? 

example for these : f(x)=((x^4+5)^(1/2))/(sinx+5) and g(x)=cosx^2   ; x>0

thanks :)

I am trying to simplify noncommutative expressions that use the 'dot' operator: `.`. The following is a minimal example:

, which evaluates to:  

This should simplify to 'a1', as I am expecting `.` to work like noncommutative multiplication. If there is any way to define this behavior I would appreciate some help. Alternatively, I would also be happy with reworking 'simplify' to work in this scenario. If it helps, I am working with finitely presented groups. If you see the Maple package 'GroupTheory', you'll see that the 'Group' function has this built in. If we input generators and relators it will simplify expressions of the above type, so I know it can be done!

Lastly, I would prefer displaying '1/a1' as 'a1^-1', but that is just for aesthetics.

Here is a minimal document: minimalexample.mw

Hello,

I'm trying to solve a system of 9 ODE in a model of a chemical reactor. But, unfortunately, when I try to plot the curves, I get the following error message: Error, (in f) unable to store '[Float(undefined)]+8.5809018712796' when datatype=float[8]

Can anyone help me please? I read some related problems here, but couldnt find a solution yet.

Thanks for your time

Best regards

Hello,

I have a optimization question in the following picture.

Question: find matrix T(t). 

I writed a maple code. Could you view it ? You think that it is right?

The code file I writed: maple_code_of_theory.mw

 It is really very important for me. Can you help me?

Thank you. 

This is not a new problem; it is a reoccuring nuisance. When doing a heavy calculation, pressing the 'Interrupt the current operation'-icon will sometimes not halt the execution; rather it continues happily, seemingly without ever stopping. The program does not seem to have stalled, because the executing-bullet at the lower left of the screen flashes back and forth. As the interrupt icon is no longer red, there is no idea in pressing that further. So in these cases, I usually have to resort to an ungraceful shut-down of Maple by way of the Windows job list (Ctrl+Alt+Delete). Is there really no other way?

Hello, How to do simple analyse on function? like find intervas where function negative and positive, monotone, critical points... 

And also how to plot them on one graph?

thanks :)

I have this H(alpha,beta,eta) con ‡uent hypergeometric function, which I can easily adopt in Mathematica like this

Hypergeometric1F1[( (\[Alpha] + S \[Beta]))/\[Beta]^2, 
 1 + ((\[Alpha] + S \[Beta]))/\[Beta]^2, -\[Alpha] ((
   E^(-\[Beta] \[Eta]))   )/\[Beta]^2]

But when I try to input this in maple using the built-in `hypergeom` it gives an error.

hypergeom((S*lambda2+alpha)/lambda2^2, 1+(S*lambda2+alpha)/lambda2^2, -alpha*exp(-lambda2*eta)/lambda2^2)

Any suggestions?

,Hello everyone 

...I need code for save maple's project like a video

Thankyou

Hello! with the datapoints below I've calulated the results "manually" 
I'm looking for a way to make Maple tell me the intersection of these datapoints with the x-axis and also, the area under it from e.g. 0 to 5.125, which i've also had to calculate by hand... I know I can use int comand to do this, but I think there is a lot wrong with the syntax, so after hours of failure I hope someone can show me the right commands..

Thanks, 
krismalo
 

Download primes_area_question.mw

i have solved the coupled equations .... and want to subtract a constant

i want to subtract constant from the result of last equation

r_p_m.mw

What is the best way for Maple to create datasets with attributes?

There must be a better way than just listlists  ie [[Honda, green, 2008],[Honda, red,civic,2004],[Hoda, blue, CRV, 2WD]] etc....

It would be similar to the table of elements using get properties. 

Hi all,

I have this equation that I can not get all solutions symbolically:

restart:

eq1 := cos(lambda*ln(r1))*cos(lambda*ln(r2))+sin(lambda*ln(r1))*sin(lambda*ln(r2))-1 = 0:

solve(eq1, lambda, allsolutions) assuming r1>0, r2>0, r2>r1

when r1:=1: r2:=2: I get the solution

2*Pi*Z/ln(2)

when r1:=1.1: and r2:=2.1: # no solutions

How to get symbolique solution

Thanks