Clik here to view.
why PDEtools:-Solve fails to same two equations in 2 unknowns when solve can?
I found a case where PDEtools:-Solve fail and solve works. I do not understand why. Is this a bug or what is going on? I thought they should give same result. > restart;> interface(version);>...
View Articlesolve a system of linear equation by LU decomposition method
I want to solve a system of linear equation by LU decomposition method (Crout matrix decomposition). Most importantly, I want to take all elements of the principal diagonal of U as 1. How to do that?...
View ArticleClik here to view.
internal error (in is/internal) type does not exist
Any idea why calling solve(eqs,unknowns) gives Error, (in is/internal) type does not exist when the unknowns are in a set, but the error goes away when the unknowns are in a list? Is this expected or...
View ArticleHow yo solve equations
I have a polynomial where one of its coefficients contains an undetermined parameter c. I want to identify which coefficient contains c and solve for c by setting that coefficient equal to zero. Since...
View Articlefinding parameter in a systems of equation with long term in fasting way?
Hi most of my equation when i wanna solve it is give me something like thus equation and it take a lot time to calculate and i don't get any answer after 1 hour past and still searching for finding...
View ArticleClik here to view.
solve identity, assertion failed, division by zero problem.
Can solve give internal Maple error of division by zero to the caller?Also when I run this using kernelopts('assertlevel'=1): or kernelopts('assertlevel'=2):, then not able to catch the internal error...
View ArticleClik here to view.
Error, (in evala) reducible RootOf detected. and solve vs. Solve
Maple solves this first order ode correctly and solution verifies OK. The solution is explicit and has RootOf. I asked it to solve it using dAlembert method to compare with my own solution using...
View ArticleClik here to view.
Solve an equation with unknown expression
Hi all guys, it is simple equation, I wanna get the expression of w=()^(1/4) which consists zg & fg. I use solve command but fails, could you please help me?> (1)> (2)Download...
View ArticleEstimating number of roots (common solutions) of a system of equations
In this post about a non-linear system of equations solutions were sougth. It turned out that there were no non-trivial solutions for the given numerical values. However, with different numerical...
View ArticleFactoring in long ODE and find parameters in better way or faster way?
I find thus equation of course i use a little bit seperation by hand, i have 11 equation but i can't get results of parameters i don't know why my code is a little bit old i think and i don't know...
View ArticleProcedure to show all steps used by solve, dsolve or pdsolve
What is the name of the procedure that provides the information about which steps Maple is using to solve an equation? I ask because I think pdsolve is caught in a loop, but I can't see what it is...
View ArticleHow to do Parameter setting?
The attached sheet contains equations H1 to H6 and K1 to K3. What data do I need to modify to ensure that the values of H1 to H6 fall between 0 and 1, and K1 to K3 are negative? The parameter ranges...
View ArticleClik here to view.
Reproduce a well-known result?
A classic result states that the equation x3＋px2＋qx＋r＝0 with real coefficients p, q, r has positive roots iff p＜0,q＞0, r＜0, and -27r2 - 2p(2p2 - 9q)r + q2(p2 - 4q) ⩾ 0 (see for example this question)....
View ArticleIs there a Maple command that can match powers across equal sign and solve...
I have a differential equation which I am looking for a series solution in inverse powers of r. I am doing this by matching inverse powers between the RHS and LHS of the differential equation and then...
View ArticleClik here to view.
Differences in Domain Results Between solve(0 < x and x 2, x) and solve({0 <...
I recently encountered an interesting issue when solving for the domain of a function in Maple using two different approaches, and I am curious about the differences in results between the following...
View ArticleClik here to view.
How to display radical roots?
Hello,I am a completely new user; please forgive me for this newbie quesiton:When trying to solve for the intersection between a parabola and a line (or a similar system), if the solutions involve...
View Articledisplay the solutions in the form of intervals or empty sets?
Hi,I want to display the solutions in the form of intervals or empty sets, using mathematical symbols. Any suggestions?ThanksQEnsembleAffichage.mw
View ArticleWarning, solutions may have been lost
I am trying to plot the shearforce of a hollow section circular beam along the hight of the cross section.I don't seem to be able to solve the equation. I get the message:"Warning, solutions may have...
View ArticleSolving systems of equations stored in a matrix
Hi! I want to create a matrix of variables, and another matrix of variables that are different from the first matrix.The idea is to generate a matrix of equations, then reshape the matrix into an array...
View ArticleClik here to view.
How to solve this system?
I need to automatically solve this system, that is, both equations simultaneously for different intervals of T that I define. For example, from T=0.1 to 4, then from 4.5 to 5 and from 7 to 8 with...
View Article