# Questions tagged [maple]

Questions about the computer algebra system Maple.

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### Finding total derivative of a multivariate function in Maple

In Maple, I have a function $f(x(t),y(t),t)$ that I want to differentiate with respect to $t$. I know the command for partial derivative $\frac{\partial f}{\partial x}$,$\frac{\partial f}{\partial y}$,...
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### How to Collect fraction in Maple 18? [closed]

Suppose I have $$f=\frac x 3+ \frac y 3 +\frac z 3$$ And I want to use collect(f, 1/3) And I wish it will displays $$f=\frac1 3(x+y+z)$$ But it doesn't work....
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### Second fundamental form - Maple

I would like to know the command/line in Maple 16 or similar to obtain the second fundamental form tensor for a given metric. I've managed to obtain Rienmann and Ricci tensor, even Weyl, but I can't ...
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### Maple: patmatch does not identify patterns inside diff() operator

I understand that the function applyrule uses patmatch to identify patterns and apply transformations accordingly. Suppose, I ...
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### solution of system of coupled partial differential equations [closed]

I have following system of coupled Partial differential equations. How can I solve the system by Maple? \begin{align} m_1\frac{\partial^2 u_1}{\partial t^2}+A_1\frac{\partial ^4u_1(x,t)}{\partial x^...
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### How to deal with big numbers in intermediate calculations?

I have a rather long expression (https://pastebin.com/jUsxdCCs) that is an analytical solution of a set of differential equations generated symbolically from Maple. I need to solve a set of equations ...
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### Symbolic convex analysis toolkit for Maple

I'm looking for the SCAT (Symbolic convex analysis toolkit) for Maple written by Hamilton and Borwein. I have seen some references in the specialized literature than mention some urls. However, the ...
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### How to increase precision of Gauss-Legendre Quadrature in MAPLE? [closed]

I've written a simple legendre quadrature in MAPLE to compute the integral $\int_{-1}^1 r^2 dr = \frac{r^3}{3} |_{-1}^1=\frac{2}{3}$ ...
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### Solving Time dependent Schrodinger equation using MATLAB ode45 [closed]

The Schrodinger equation for time-dependent Hamiltonian is $$i\hbar\frac{d}{dt}\psi(t) = H(t)\psi(t) \, .$$ I try to implement solve the Schrodinger equation for time-dependent Hamiltonian in ODE ...
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### Defining Cauchy principal value in MATLAB (or Scilab/Maple)?

How to define a variable which is an integral involving cauchy principal value inside in any computer programming language? I want to know how to break down the procedure step by step from a ...
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I have the function $cos(x+t)$; the following PDEs have $cos(x+t)$ as the analytical solution of them: $$u_t = u_{xx} -\sin(x+t) + \cos(x+t) \\ u_x(0,t)=-\sin(t) \\ u_x(1,t)=-u(1,t)^4-\sin(1+t)+\cos^... 2answers 457 views ### Looking for a matlab/maple code for plotting the truncation error On page 18 on this text: http://www.dima.uniroma1.it/users/lsa_adn/MATERIALE/FDheat.pdf , the graph in figure 8 on this page, how would I write a suitable code in matlab or maple that will produce ... 3answers 1k views ### Benchmarks for Gröbner bases and polynomial system solution In the recent question Solving system of 7 nonlinear algebraic equations symbolically, Brian Borchers experimentally confirmed that Maple can solve a polynomial system that Matlab/Mupad cannot handle. ... 0answers 59 views ### CAS Problem with integrals I got this problem thrown at me, unfortunately I lack context at the moment but I thought Maple or Mathematica would solve it anyways. I have a function f over x and y such as this (Maple) <... 1answer 141 views ### Solving differential equations in MAPLE (ballistic curve problem) [closed] TASK: Make a simple animation of an object shot from a catapult. Object is moving through a medium. The problem must be solved in MAPLE. NARROWING OF THE PROBLEM: 2D problem consider atmospheric ... 0answers 94 views ### Bracket Algebra, Straightening Algorithm My apologies if the question is simple. I need to write a code for straightening algorithm. Which includes defining bracket algebra. I tried to write it in CoCoA-5, but it wasn't possible because ... 2answers 4k views ### Determine unit outward normal vector for a curve It is necessary for me to find the unit outward normal vector for the curve:$$\gamma=(x(t),y(t)) $$where$$x(t)=\cos(t)−0.5\cos(3t)$$and$$y(t)=\sin(t)+\sin(7t)+\sin(3t) I know how to find ...
I have a a function $f(k)$ (calculated in Maple) which is huge and stored in a variable called 'sum' on my drive (with the help of 'save' command in Maple). Since the function is huge, Maple is unable ...