Clik here to view.
Help!How can i obtain the numerical values of the model solutions using...
 >  Warning, The imaginary unit, I, has been renamed _I >           (1)> (2)> (3)> (4)> (5)> (6)> (7)> Warning, The use of global variables in numerical ODE problems is...
View ArticleA problem about coeffs()
Hi,   This is not an answer. I can't ask question, since I can't add any 'tags'! This problem appeared long time ago, but I hadn't solved it until now. So I ask here.   I have a question about the...
View ArticleGetting an answer to display inline
I have a dual boot mac book (so a mac book air with windows mode). I am trying to get my answer displayed inline (so the alt+enter on a normal windows computer), but I cant figure out how to do it on...
View ArticleHow I can substitute...?
How I can substitute Eqs(1-16) into Eq (17)?Should I use from subs rule?Thanks coeff.mw Â
View ArticleClik here to view.
How can i deal with this error
I have a system of nonlinear differential equations with initial conditions:Â >Â >Â >Â >Â >Â >Â >Â Error, (in dsolve) invalid input: `PDEtools/NumerDenom` expects its 1st argument, ee, to...
View Articlehow can I solve (Error, unable to compute coeff) error on Maple
I get error on Maple code N := 4f(x):=sum(p^i*fi, i = 0 .. N);HPMEq := (1-p)(diff(f(x), x$3))+p(diff(f(x), x$3)+(1/2)(diff(f(x), x, x))*f(x));for i from 0 to N do equ[2][i] := coeff(HPMEq, p, i) = 0...
View ArticleMaple - Having issues using dsolve();...
The problem is solved. Thanks for the help and for the good advices :D
View ArticleClik here to view.
Jacobian not showing for Lorenz equations
I am trying to get jacobian computed for lorenz equations, not showing matrix, using Maple 2019 newest version. any guidance?   Â
View ArticleRelabelling vertices of a graph sometimes doesn't work
Hi, This is a question more or less related to this one Is it possible to define variables with unusual na... but I think it's better to open a new thread. If some think otherwise, please feel free to...
View ArticleClik here to view.
Error, invalid input: expand expects 1 argument, but received 0
Hello users. I have a question on my work.I'm trying to construct the equation and plot it. And I got 2 errors(warning).Please help me how to solve this problem check the image below and attached file....
View ArticleHow to use the Liebniz notation in a complex expression ?
HiI would like to use  the Liebniz notation that someone from the technical support posted hereWriting Derivatives at a Point Using Leibniz Notation to display a formula that is not just a partial...
View ArticleClik here to view.
How do I fix the possibility calculation error in Maple?
Hello Users,I have a question on my work.I constructed two different equations that looks different.Two constants the front of each equations (kappa_T and kappa_S)  have difference too much. (without...
View ArticleClik here to view.
Colour coding curves within a 3d plot
Hi I have been making a 3d graph of the level sets of a function. Here is the code for the 3d graph:display(seq(seq(plot3d([i/sin(u), u, j], u = 0 .. 3/2, t = 0 .. 10, view = [0 .. 10, 0 .. Pi/2, 0 .....
View ArticleMaple won't solve system of linear equations if one more equation was added
Hello everyone.I have a very simple question. When I use maple to solve the following equations, everything works as expectedsolve({ a + b + c + d = 0, d * (480-471.1) + b * (484.3-471.1) + c *...
View ArticleClik here to view.
Trouble calculating partial derivative in Maple
Hi all,I have the following function (with parameters/constants a, b, and p2A ):Â I want to calculate its partial derivative with resprect to p1A. I entered the following code to do this:But this...
View ArticleError, unable to parse
Hi all,I have the attached code, it returns a "unable to parse" error after the line with the "FOC__1D1" assignment. I can't find out why. Thank you for your help in advance,JTamas1_2_test.mw
View ArticleClik here to view.
How to Plot a Rational Algebraic Function
Hi,I'm trying to plot:I keep getting a what looks like a straight line. it should be a curved line.I got it to work on :y = x(x^4 - 10*x^2 + 39)/30https://www.mathway.com/Algebra
View ArticleHow to display the integration geometry range in VectorCalculus?
Hi,The VectorCalculus package offers a convenient way to compute multivariate integral over a non-square geometry. See help("VectorCalculus/int"). Here is an example taken from this help page:...
View ArticleClik here to view.
How do I fix the possibility calculation error in Maple?
Hello Users,I have a question on my work.I constructed two different equations that looks different.Two constants the front of each equations (kappa_T and kappa_S)  have difference too much. (without...
View ArticleWhat could have happened to solve command?
Good day house.Please I don't know why the solve command does not display any results in the following code. Kindly assist. Thank you in anticipation. restart; omega := v/h; t := sum(a[j]*x^j, j = 0 .....
View Article