# Tagged Questions

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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### Conversion of Hypergeometric functions from Maple to Mathematica

After a calculation I found in Maple an expression of the kind: $$f(x)=hypergeom\left(\left[\dfrac{a}{b},1\right],\left[c,d\right],h\right)$$ What is the equivalent notation in Mathematica which I ...
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### Simplying linear equation to get quartic in q using Maple and then using Descarte’s rule of sign

Using the maple I am trying to get quardic in q from this big linear equation. Then use Descarte’s rule of signs to determine the number of positive roots. \frac{\gamma*q*P_Q}{k_p*(1-...
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### What is the algorithm for the “Shorten” command in Maple?

There is a package in Maple called "PolynomialTools". That has a command "Shorten". Does anybody know on what algorithm this is based. The maple manual does not explain much. Example: with(...
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### Maple: Inverse of Covariance Matrix

Good day, I would like to ask about the inverse of covariance matrix from the coding below (using maple): Anyone know why the inverse A can't be computed? Thank you for your help!
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### Function of polygonplots does not plot all polygons

Could anyone explain to me why my Maple-Code does not work properly? ...
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### Differentiation of a parametric function using MATLAB or Maple

I'm doing some mathematical calculation of some symbolic math that includes multiplication and differentiation of some matrices. Some of the parameters in my calculations are functions of time. for ...
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### Best Math Plotting Software for Electrical Engineering

I am an electrical engineering undergrad. I would like to learn a math plotting software which would be helpful in visualizing topics in advanced calculus (my immediate need). It would also be helpful ...
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### Help in understanding the Maple answer

I tried to find the definite integral of an equation using Maple. It returns the answer to me as a limit. Specifically, it is giving me $$\lim_{r\to \infty} G(r)$$ What does this answer mean? Do I ...
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### Isolate terms within an equation in Maple

Is it possible to automatically (from command line, or using select and then the menu from right-click of the mouse) to isolate specific terms in an equation withn maple? Hier is a very simple simple ...
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### Is there some function in Maple which can compute the number of monomials in a polynomial?

Is there some function $f$ in Maple which can compute the number of monomials in a polynomial? For example, $f(x_{1,2})=1, f(x_{1,2}+3x_{3,2}x_{2,5})=2$. Thank you very much.
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### How to find number of variables in a monomial in Maple?

Given a monomial $m$. How to find number of variables in $m$ in Maple? For example, let $m=2*x*x$. Then the output to be $2$ (two same variable $x$ in $m$). Let $m=-2*x*y*y$. The output is $3$ (...
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### Take the index of a variable in Maple.

Are there some functions in Maple which can take the index of a variable. For example, we define are there some functions f in Maple such that f(x[2,3]) = [2,3]? Thank you very much.
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While attempting to answer this question with help of MAPLE, something very strange happened, at least according to me. We have the following function: $$\phi(x,y) = x^2-y^2+\frac{x^2-y^2}{(x^2+y^2)^... 1answer 123 views ### Parametrization for implicit function 3y^2=x(1-x)^2 By differentiation we can knwo that the sketch of this graph has one circle. I want to draw a graph in maple. Implicit plot does not work well So I will use parametric way. ... 2answers 121 views ### Coding in Maple I am trying to animate a sequence of functions in Maple and I am stuck on how to do so. This is what I have so far ... 1answer 289 views ### Plotting piecewise functions maple How would I plot the following equation in maple?$$f(x) = \begin{cases} 1, & \text{if } x\in\mathbb{Q}, \\ 0, & \text{if } x\notin \mathbb{Q}. \end{cases}$$1answer 73 views ### Solving an ODE in Maple via Picard approximations I am trying to use Maple to apply Picard approximations to the following ODE:$$ 2xyy' + x^2 - y^2 = 0,\ y(0) = 1 $$I transformed it into the form y' = f(x, y):$$ y' = \frac {y^2 - x^2} {2xy} $$... 0answers 120 views ### Maple code to Latex file I am writing a project in Latex and have been using Maple to help calculate various things. I want to copy the code in maple and put it into the Latex file so it will still maintain the maple style ... 3answers 88 views ### Plotting a region in 3D space I would like to know if someone knows of a software where I can plot the following region$$ D = \{ (x,y,z) \in \mathbb{R}^3: 0 \leq x \leq 1 , \; x^2 \leq y \leq x, \; \; 0 \leq z \leq x \} $$... 0answers 82 views ### Galios Field Theory GF(29)^2 is created by adjoining the root of the irreducible quadratic p=x^2+7x+15 to the field GF(29) . The cubic polynomial q=Y^3+(26x+26)Y^2+(8x+22)Y+13x+23 is irreducible over this new ... 1answer 157 views ### Prevent Maple to evaluate before simplify a function I have been trying to find a domain of f(x)=\frac{x}{\frac{(x+2)}{(x-3)}} using different kind of software ( its clear the domain of this function is \mathbb{R}\backslash \{-2,3\} ). When I tried ... 1answer 40 views ### Finding zeroes of a numerical solution of an ODE in Maple I have a system of ODEs involving many variables, say 20, and I have solved this system numerically by Maple for a particular initial condition. When I plotted these solutions it was clear that ... 1answer 113 views ### Inserting Maple worksheet commands [closed] In Maple, it's very easy to delete a line or command in a worksheet (cmd-backspace), but how would I insert a line in the middle of a worksheet? Thanks, -GW 1answer 43 views ### defining ODEs recursively in maple I want to numerically look at a system of ODEs with a large number of variables; defined by da_j(t)/dt= 2^j a_{j-1}^2 - 2^{j+1} a_j a_{j+1}, for j=0\ldots50 with a_{-1}= a_{51}=0. In maple, I ... 2answers 96 views ### maple evaluate function of variables containing x Well this is basically the problem. I want to evaluate a function but the variable x is defined inside a, so for some reason maple doesn't substitute 7 for x. 3answers 1k views ### first, second and third derivative of a vector function I can define the following vector function f(x,y,z) = [x^2 - 1, x^3 + y^2, z] in MatLab or in Maple. I want to find (and evaluate) the first, second and third derivatives of it. How to find : \... 1answer 50 views ### keeping track of a quantity in an ODE system I have looked at some Maple help documents, but it was hard to find what I wanted to do.. My situation is quite simple. I have a couple ODE for (say) 5 variables, a_1 '(t) = a_2 (t) a_3(t) - a_1 (... 1answer 211 views ### Good software package to help Maths learning I'm a mature student enrolling at a Maths degree course soon at the university. I'd like to be able to use some software package to help me visualize equations, graphs, play around with variables with ... 2answers 136 views ### Maple: If a number is an integer/square I'm writing a Maple procedure and I have a line that is "if ... then ..." and I would like it to be if k is an integer (or if k^2 is a square) - how would onw say that in Maple? Thanks! 2answers 84 views ### How to plot a surface in maple where the range is given by an expression, not constants? Im trying to plot the surface z=(1+x^2)/(1+y^2) , but specifically the part of the surface that is above |x|+|y|\leq1. Cant seem to find any information on how to produce a plot in maple, where ... 2answers 77 views ### Ending a procedure early in Maple I want to jump to the end of the procedure if an IF statement is true ... 1answer 994 views ### How can I plot a 3d graph with data points in Maple? I am trying to plot this data on Maple as 3D scatter plot and surface plot: Any help would be appreciated. Thanks. Cut-and-paste format of the data: Pressure(Bar) Temp (K) k (/Ms) 19.02 ... 1answer 438 views ### Can wolfram alpha compute symbolic vector derivatives Can Wolfram alpha be used to find out say$$\nabla_x\left(\|y-Ax\|_2\right)$$What command do I use? I tried some obvious ways, and googled a bit, but didn't find anything. 1answer 437 views ### plotting cones and space curves using Maple A curve \cal{C} is given by the parametric equation$$ {\bf r}(t) = (e^t\cos t, e^t\sin t, e^t-1)\;,\quad 0\leq t\leq 2\pi\;. Using Maple, I would like to sketch the curve \cal{C} and the cone ... 1answer 46 views ### Is there a way in maple to compute sums of arbitrary number of products minors of matrices? I would like to use maple to compute \begin{align} P_i & = \sum_{1\leq j_1 < \cdots <j_{i-1} \leq i} \Delta_{(2,\ldots, n), (j_1,\ldots,j_{i-1}, i+1, \ldots, n)}(A) \Delta_{(j_1, \ldots, ... 1answer 250 views ### contourplot labels? I need to label my contours generated by using the contourplot function. Is this feasible in Maple? I have tried the advisor6 database found here http://www.math.ubc.ca/~israel/advisor/advisor6/... 2answers 163 views ### Why maple computes \prod_{k=3}^{\infty} \cos \left(\frac{\pi}{k}\right) as 0? I have computed the infinite multiplication using Maple, \Pi_{k=3}^{\infty} ( \cos (\frac{\pi}{k} )), as follows, but it resulted in 0! I wonder why this happened, although maple was using exact ... 0answers 63 views ### Why Maple fails to judge x < \tan(x) assuming 0<x<\pi/2? I am using maple to verify an expression, x < \tan(x) for 0 < x < \pi/2, but it returns FAIL, i.e. is ( x < tan(x) ) assuming 0 < x < Pi/2 ... 1answer 205 views ### Have trouble making a phase line plot with Maple. Draw the phase line, and sketch several graphs of solutions in the ty-plane Is the directions for my homework. I have tried the Phase Portraits for Autonomous Systems under tasks, but I don't ... 1answer 153 views ### Trying to use the pointplot command on Maple I'm trying to plot the points (n, a(n)) from n=1 to n=20, but Maple's just telling me what I want to plot, without actually plotting it. Any ideas on what I'm doing wrong? 1answer 46 views ### Maple: use one digit of a long number I'm writing a procedure in Maple and was wondering if there was a way to pick out one digit of a number - for example, if the number was 18475 and I wanted the tens digit I would do something to ... 1answer 69 views ### Plotting this quadratic residue program results in a point plot I recently wrote a program for quickly finding quadratic residues in Maple; quadres := proc (n::posint) global k, L, Sorting; Sorting := proc (X) global Y, i, j, z; Y := X;... 1answer 40 views ### How to write a maple program to calculate the product of polynomial factors missing some factors? How to write a maple program to find the following products \prod\limits_{j=1,j\neq 5}^{100} s-a_j \prod\limits_{j=1,j\neq 6,11}^{100} s-a_j \prod\limits_{j=1,j\neq 2,9,25,68}^{100} s-a_j ... 2answers 81 views ### How plot f(x,y) = \frac{x}{1-y} with x^2+y^2<1? How do you plotf(x,y) = \frac{x}{1-y} \text{with}~ x^2+y^2<1 in Mathematica or Maple?
$y^{\prime}=ay+b$ where $a,b$ are positive numbers. I know how to plot this if I have exact values for both $a$ and $b$, but how to see the difference as either/both $a$ and $b$ change? I ...