For questions involving the application of the program Maple to mathematics. NOTE: questions which focus primarily on the program Maple and not on its applications to mathematics are not appropriate for this site.

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4
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2answers
1k views

Maple: how to solving composite function

Here is just an simple example that I want to use Maple to solve: $$h(x)=f(g(x))$$ $$g(x)=2x+1$$ $$h(x)=4x^2+4x+7$$ Find polynomial of $f(x)$ Thanks :)
0
votes
1answer
338 views

Random-Tree simulation

I wanna simulate a Galton-Watson Tree to a maximum of n generation given a reproduction law P. I use Maple but I am unable to create the edges of the tree whenever there are more than two vertices in ...
0
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1answer
3k views

Using maple to find stationary points within a domain/range

I have no trouble finding stationary points using diff and solve in the following way: f:= somefunction; dx:=diff(f,x); evalf(solve(dx=0)); which gives me an ...
0
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1answer
697 views

diffusion equation plot (matlab or maple)

The advection diffusion equation is the partial differential equation $$\frac{\partial C}{\partial t} = D\frac{\partial^2 C}{\partial x^2} - v \frac{\partial C}{\partial x}$$ with the boundary ...
1
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2answers
231 views

Error In Assigning Values to Two-Variable Function

Please migrate this question if it is not appropriate for Math.SE (I fear it is not). In the following snippet, $f(i,j)$ is a procedure that compares the value of $i$ and $j$ before deciding what to ...
0
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1answer
499 views

Running command line Maple script interactively

I'm connecting over ssh to a machine running Maple. Is there a way to run a script, let's say derp.mpl, such that after executing the script Maple is still running? Something perhaps analogous to ...
1
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1answer
652 views

Lagrange Coefficients in Maple

I'm trying to compute Lagrange coefficients in Maple. Having found the $n$ roots of a Lagrange polynomial, I want to calculate the $j$-th coefficient: $$L_j(x) = \prod_{{i=0}\atop{j \neq i}}^{n}\frac{...
0
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3answers
930 views

Draw 3d double integral in Maple

I have a voluntary hand in I am working on, and in that rigard I need to draw the following figure in Maple. The area $ \displaystyle \iint_R \frac{x}{\sqrt{x^2+y^2}} \mathrm{d}A $ where $R$ is ...
0
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2answers
267 views

Integrating with vector coefficients in Maple

I'm trying to use Maple to do something like this integral: $\displaystyle\int \frac{a\mu-b}{||a\mu-b||^3} \mathrm{d}\mu$ Where $a, b$ are vectors and $\mu$ is a scalar I'm integrating by. But I ...
2
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2answers
1k views

Generating random array in Maple

I'm trying to do simulation in Maple, but I can't figure out how to do the following: How does one generate a set of random whole numbers in an array of 24 element (in 1 column) where the sum of the ...
1
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1answer
104 views

Maple help : How to use functions

I have a quadratic expression, which I process using the solve function in MAPLE, like so quadformula := solve(p,x); This displays the quadratic form of the ...
0
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1answer
54 views

Maple: Understanding PhasePortraits

I'm trying to understand how to use phaseportraits in maple by following an example however, I'm not really sure where certian aspects of the equations given come from: First, let us read in the ...
0
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1answer
336 views

How to make Maple 15 plot VolumeOfRevolution with implicity function?

Suppose I have two functions f(y) and g(y), how do I plot the surface rotated about the axes in Maple? Assume you cannot write f(y) or g(y) in terms of x. Maple only allows g(x) and f(x)
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vote
1answer
167 views

How to substitute an array in a given expression in Maple?

Given e.g. f := a[1]*a[2]+a[1]*a[3]+a[2]*a[3] Now we want to substitute a[i]->i, I tried ...
0
votes
1answer
1k views

Find intersection of two functions in Maple

I have two functions $f$ and $g$ defined as: $$f := \operatorname{Spline}(\operatorname{pointsBW}, t)$$ $$g:=x \rightarrow \frac{1}{x}\int_0^x f\;dt$$ where $f$ is a functional form for a set of ...
0
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2answers
54 views

Lower-bounding expressions in Maple

I have the following complicated expression $E(n)$ and I am interested in finding a simple expression $S(n)$ such that $S(n) \leq E(n)$ for all sufficiently large $n$. Does anyone know how one can do ...
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0answers
151 views

recurrence relation of general difference polynomials

I have a sequence of difference polynomials (which I obtained by the method of finite differences) and I would like to find out if there is a recurrence relation between them. The generating function ...
1
vote
2answers
206 views

Is there a way to make Maple 15 graph on the plane?

I am trying to graph a parametric equation on $\mathbb{R}^2$, but Maple keeps giving me an $\mathbb{R}^3$ curve. Here is what I did ...
6
votes
1answer
234 views

Is correcting 2 consecutive error's in 9 messages from $ GF(2^6) $ by turning tham into 3 messages and solving Reed-Solomon code $ (3, 18) $ possible?

2 consecutive messages have errors. We have 9 messages from $ GF(2^6, x^6+x+1) $. Messages were encoded with $ (x+1)(x+a)(x+a^2)\sum_{i=1}^6X_ix^{i-1}=\sum_{l=1}^9Y_lx^{l-1} $ , where $ a=(0,0,0,0,1,0)...
1
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1answer
444 views

Maple: Galois Field with characteristic 2 $\mathrm{GF}(2^m)$ - how to convert polynomials into binary vectors and vice versa?

In GF($2^m$) each element is a polynomial also it is a binary message. I wonder how to make maple help me convert vectors of maple Bits into GF elements and back? Also it is not the question of ...
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1answer
217 views

Maple: bug in Overview of the GF (Galois Field) Package?

So I downloaded sample (Download Help Document) but I can not compile it - (last line fais with: ...
0
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1answer
283 views

How to simplify expressions in a polynomial ring using software Maple

![How to simplify expressions in a polynomial ring using software Maple][1]. For example,I want to verify some expressions is zero. But I don't know how to archive my goal. Anyone can help me? Thank ...
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1answer
380 views

Maple wrong about partial derivative of exponential function?

When I input this function in Maple: f := (x, y) -> exp(x+xy-2*y) And take the derivative: diff(f(x, y), x); I receive: ...
0
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1answer
1k views

mod and rem in Maple

I do not understand this statement "reduce the coefficient modulo 5 and take remainder"? Is the following Maple command to reduce the coefficient modulo 5 , which coefficient to reduce? ...
0
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1answer
170 views

recurrence relation only for odd indices maple

I want to define a recurrence relation $a(n)$ which is only defined for odd n. I tried something like: a:= (2*n-1)->a(2n-3)+(2n-2)!+a(2n-5); which apparently doesn't work. How do I define this ...
3
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0answers
182 views

Trying to solve Navier equations with Maple

I've been trying for ages now to get this to work, it's a system of partial differential equations (Engineering, Plate theory) $$pde1: = \frac{{{\partial ^2}}}{{\partial {x^2}}}u\left( {x,y} \right) +...
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1answer
178 views

Vector containing parameters

I am pretty new to maple and have the following question: If I define a vector q containing a parameter b should i define it like: q := vector[column]([b, 0]) ...
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vote
1answer
455 views

Solving a system of equations in Maple

I have a set of equations which I would like to symbolically solve for a defined set of variables using the solve command in Maple. However, being not familiar with the program, it does not give me ...
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1answer
133 views

Extract a decimal from a vector in maple

Not sure if this question belongs in this form but I don't know where else to go. I'm trying to index a matrix and do a < comparison on it. Every time I try something like A[1] it says: Error, ...
0
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1answer
122 views

Maple: How to give values to assumptions for plotting?

So I have a simple example of what I want to do: ...
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vote
2answers
67 views

Is $\frac{1}{(\textrm{can}-a-b\cdot i)^2}-\frac{1}{(\textrm{can}+\textrm{cod}-a-b \cdot i)^2}$ in any way simplifiable with Maple?

So I wonder if Maple can reduce such lines like $$\frac{1}{(\textrm{can}-a-b\cdot i)^2}-\frac{1}{(\textrm{can}+\textrm{cod}-a-b \cdot i)^2}$$ (assuming all variables but $i$ are real)?
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1answer
572 views

How to make a list in maple [closed]

I need to do some computations with maple which I don't know how to do it. So I thought I can ask you. I am going to pick a simple function, as simple as possible. let's take $f(x,y):=x^2+y^2$. I ...
2
votes
1answer
195 views

What's wrong with my writing in Prem algorithm?

Solved by fixing program I discover lead coefficient should include other variables now it stop infinite loop but result not correct i am near the answer $yz^6+2y^2z^4+5y^3$ the difference is my ...
1
vote
1answer
189 views

Having such integral, how to optimize it in maple?

So we have : (1/3)*sig0*h^3*(int(int(sin((1/3)*arctan(y, x)), x = 0 .. r), y = 0 .. 2*Pi)) Is it possible to optimise it? (in maple or any other way...) How I ...
0
votes
1answer
647 views

Maple: How to convert Cylindrical coordinates to Cartesian coordinates?

We get some expression in Cylindrical coordinates (r, ϕ, z ) like : expr := r*z^2*sin((1/3)*ϕ) we need to convert ...
3
votes
1answer
2k views

A series solution of the differential equation: $\frac{d^2u(x)}{dx^2}+ u(x)^n = 0.$

Consider the differential equation $\frac{d^2u(x)}{dx^2}+ u(x)^n = 0.$ Let the solution be $u(x) = u_0(x) + p u_1(x) + p^2u_2(x) + \cdots +p^m u_m(x).$ Now we are interested in substituting the ...
0
votes
1answer
4k views

System of differential equations in Maple

I have problems entering a system of differential equations to Maple 13. Equations are: $x' = -4x + 2y$ $y' = 5x - 4y$ Solve for $x = 0, y = 0$ Thank you in advance
1
vote
1answer
116 views

Maple giving nonsensical value for integral

(I think this question is acceptable for this site.) I ask Maple to evaluate integral(1/(exp(i*t)-z),t,-π,π), and I get [if |z| = 1 then undefined else -(2*π)/z]. I understand the first part, the ...
0
votes
1answer
131 views

Maple loses some solutions

Probably off topic, but still. I'm trying to solve equation of the form $P^2 = \mathrm{id}$, where $P$ is a matrix with some unknown coefficients. The problem is, Maple looses some solutions, in ...
1
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1answer
184 views

Differential equation problem in Maple

I have differential equation $x\cdot\sqrt{4+y^2}\,dx + y\cdot\sqrt{1+x^2}\,dy = 0$, which is simple to solve on paper, but I have problem solving it with Maple (I use 10th, tried on 14th also). When ...
3
votes
1answer
418 views

How to use Maple derive the 4th central moment for this distribution?

Let $X_i$ be a random variable, and the probability density function of X_i is $$P(X_i=k)=\frac{{k-1 \choose i-1}{m-k \choose n-i}}{m \choose n}$$ For more about the distribution, please refer to ...
0
votes
1answer
431 views

Maple: How to parse such CSV (Comma Separated Values) document?

So I have a large txt file with such contents (like 20mbs long) ...
0
votes
1answer
636 views

Maple: How to turn a set of vectors into a matrix?

In Maple the command NullSpace turns a given matrix into a set of vectors -- a basis for its null space. This is precisely what it should in a mathematical sense. However, for computations using the ...
2
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1answer
72 views