what would i write if i wanted to display the full list of variables that be specified by calling kernelopts? like as output in the interface, i naively attempted ops(kernelopts)  which didnt work of course.

hi...

pleaase help me for dsolve equations...

expected.mw

Download expected.mw

Give this

ode:=diff(y(x),x)=a*cos(y(x))+b;
sol_1:=2*arctan( (a+b)/sqrt(b^2-a^2) * tan(1/2*sqrt(b^2-a^2)*(x+_C1)));
sol_2:=2*arctan( sqrt(a+b)/sqrt(b-a) * tan(1/2*sqrt(b^2-a^2)*(x+_C1)));

sol_1 and sol_2 are the same. Only difference is that I wrote  (a+b)/sqrt(b^2-a^2) in one, and  sqrt(a+b)/sqrt(b-a) in the other. But these two expressions are the same. But odetest gives zero on the first and not on the second:

odetest(y(x)=sol_1,ode);
       0

odetest(y(x)=sol_2,ode);
       not zero 

Why did Maple not verify sol_2?

Maple 2016.1 on windows 7

Can we calculate the following equations in Maple?

Substituting equations (21) and (22) into (17), and then obtain equation (23). How to do that? I have done this, but the results are complex and large. They are not in a sum form, but in an expansion form. The reference and the maple file are attached.

Hope for your help.

Best wishes,

Kang

Dynamic_buckling_of_thin_isotropic_plates_subjected_to_in-plane_impact.pdf

gg.mw

Recently, entered a engineering graduate program and will be taking a graduate engineering class in my retirement.  In our Into classes we reviewed engineering math through ODE. In the second class, we performed some numerical methods using MatLab with a small introduction.  My formal Math wass in the 1980s, but now have to fire it up for a Engineering Analysis using Michael Greenberg's Advanced Engineering Mathematics, 2nd which has Maple imbedded code and directions.

What would be my assignment for getting up to speed with using Maple to solve algebraic-symbol-programming problems? For instance, which tutorials in what order, or webinars? i think I once had Fortran 77 and remember zip.

Appreciate any good advice.

MathMan2

i tend to study a particular function each day, and noticed that the CAS literally ignores me when i as for an evaluation of the mellin transform for the lerch phi function. i just assume there to return an error if the function has properties that do not satisfy the criteria for a particular transform, in this case, null, it just pretends i didnt ask.

Assuming the maple kernel hasnt evolved conciousness and has decided to hate me im guessing someone else has run into similar circumstance.

Hello 

Is there a way to solve matrices symbolically?

an example would be A*X=B

where the answer would be 

X=A^-1B

I have tried to look for a thing in maple that will do this but so far i had no luck. Does anyone know ?

Thanks in advance

Hi,
I have this lists and I have written a program to process these lists and produce only the lists that certisfy a certain condition. Instead of printing these lists, I want just the total number of the lists produced. How can I do these? The only thing I can think of now is to append the lists in an Array and get the number of elements in the array, but this will be very inefficient since I am looking at a very big number here.

Any help is appreciated,

Thanks.

Vic.

Hi,

I am trying to download some MapleSim Robotic models from the Maplesoft website but I have 'Invalid File Format' error. Could you help please?

Best

Onder

Given that I use Maple as a student I've had to update to the newest version to keep using Maple.

However I find I have a lot of problems with the new version.

Normally when I write an assignement or work on the given problems I use worksheet mode because it is the best mode to spot any mistakes, and I've grown accostumed to it.

My problem however is when I have to use text.

Normally I've hit CTRL+T to get Maple to recognize that I write text, whereupon I write the given assignment, and press CTRL+J for when I want to go on and write some math. However we do have a little issue about the symbols.

Since I am an engineering student we use a lot of greek letters, and in this case I bring up sigma. In the "old" Maple I pressed F5 to get into math, write the symbol I wanted, pressed F5 again to get back to text and keep writing. In Maple 2016 however I do the same and then at the end of the text paragraph maple spits out lines of blue text with all of the "math" that I have written.


So my question is thus: Can I stop Maple from giving me the blue text, or perhaps is there another way to type symbols without having to go into math?

What is the funcional difference between individual, academic, and professional editions of Maple?

I was wondering if there is a way to represent a matrix in a reduced state.  By this I am talking about:

      | 1/3 1/3|

A:=| 1/3 1/3|  Where A is 2x2 matrix.  I would like represent it as:

           | 1 1|

A:=1/3| 1 1| is that possible with maple???

Thanks

Can Maple 17.0 work on Windows 10 Home Edition? or it can be only Windows 10 Pro Edition

how i can simplify

(f(x[n])/Df(x[n]));
in code

restart;
taylor(f(x), x = gamma, 8);
f(x[n]) := subs([x-gamma = e[n], f(gamma) = 0, seq(((D@@k)(f))(gamma) = factorial(k)*c[k]*(D(f))(gamma), k = 1 .. 1000)], %);

1 2
f(gamma) + D(f)(gamma) (x - gamma) + - @@(D, 2)(f)(gamma) (x - gamma)
2

1 3 1 4
+ - @@(D, 3)(f)(gamma) (x - gamma) + -- @@(D, 4)(f)(gamma) (x - gamma)
6 24

1 5 1 6
+ --- @@(D, 5)(f)(gamma) (x - gamma) + --- @@(D, 6)(f)(gamma) (x - gamma)
120 720

1 7 / 8\
+ ---- @@(D, 7)(f)(gamma) (x - gamma) + O\(x - gamma) /
5040
2 3
c[1] D(f)(gamma) e[n] + c[2] D(f)(gamma) e[n] + c[3] D(f)(gamma) e[n]

4 5 6
+ c[4] D(f)(gamma) e[n] + c[5] D(f)(gamma) e[n] + c[6] D(f)(gamma) e[n]

7 / 8\
+ c[7] D(f)(gamma) e[n] + O\e[n] /

taylor(D(f)(x), x = gamma, 8);
Df(x[n]) := subs([x-gamma = e[n], f(gamma) = 0, seq(((D@@k)(f))(gamma) = factorial(k)*c[k]*(D(f))(gamma), k = 2 .. 1000)], %);

D(f)(gamma) + @@(D, 2)(f)(gamma) (x - gamma)

1 2 1 3
+ - @@(D, 3)(f)(gamma) (x - gamma) + - @@(D, 4)(f)(gamma) (x - gamma)
2 6

1 4 1 5
+ -- @@(D, 5)(f)(gamma) (x - gamma) + --- @@(D, 6)(f)(gamma) (x - gamma)
24 120

1 6
+ --- @@(D, 7)(f)(gamma) (x - gamma)
720

1 7 / 8\
+ ---- @@(D, 8)(f)(gamma) (x - gamma) + O\(x - gamma) /
5040
2
D(f)(gamma) + 2 c[2] D(f)(gamma) e[n] + 3 c[3] D(f)(gamma) e[n]

3 4
+ 4 c[4] D(f)(gamma) e[n] + 5 c[5] D(f)(gamma) e[n]

5 6
+ 6 c[6] D(f)(gamma) e[n] + 7 c[7] D(f)(gamma) e[n]

7 / 8\
+ 8 c[8] D(f)(gamma) e[n] + O\e[n] /

(f(x[n])/Df(x[n]));
this last term did not use f(x[n]) value from above to solve it. plxx help if any one can solve it...