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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4answers
586 views

Why does not Maple plot $y$=$x^{1/3}$ properly?

Many of my students have asked me this simple question: "Why does not Maple plot $y$=$x^{1/3}$ properly?" I have examined it by myself. Also, I ploted the absolute value of $y$ and think that, ...
1
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1answer
168 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
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1answer
462 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 ...
2
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
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1answer
2k 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
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1answer
104 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
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1answer
124 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
164 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
400 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
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1answer
241 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
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1answer
483 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
votes
1answer
71 views