MaplePrimes Questions

Dear Maple Users,

I do need to find the intersection of two surfaces which defined by two equations eq1 and eq2, (see attached file).

There was similar question on the MP: 
http://www.mapleprimes.com/questions/127821-How-To-Plot-The-Intersection-Of-Three-Surfaces

, but that doesn't work in my case. And I can't understand why....

 

 

 

 

Hello everyone,

I am trying to execute a procedure but its not giving me the desired output.

Please have a look.

Ad_proc.mw

Thanks

Hi,

Quite often, the result Maple gives involves exponents.

For example:

0.26/0!*e^-0.26.

When I use "evalf", "simplify", or right-click and select "approximate," I always obtain a fraction with e^13/50. How an I get a numerical approximation!

 

Thanks!

Hello everyone,

 

I have owned Maple since I began post-secondary in 2010 and have not used it until recently.

 

What is the easiest way to calculate problems involving random variables?

 

For example, if is a Binomial(10,0.5) random variable, what is the probability that X = 3?

 

I found tutorials, but these used graphs, and all I want is a short and sweet way to identify the type of random...

I'm using maple 14 on a win7 2.8gHz 4gb laptop and over the past 2 days my maple has fallen appart, i'm trying to print a worksheet that is only 5 pages and not especialy complicated but maple's memeroy usage is exploding up to 400mb, or 1.3gb if i actually run the code. I need to print the work sheet and it just spent half an hour "spooling" i don't know what is causing maple to go haywire

hi frndz...i want to generate a matrix of order n x n in maple through loops..for example if equation is 
rUi-1,j+1 -2rUi,j+1 +rUi+1,j+1 = rUi-1,j -2rUi,j +rUi+1,j

then how to write code that it generates n x n matrix for above equation if at jth level values are known and j+1 level vaules are unknown...

Hi,

After upgrading to Maple 16.02, the Maple code:

eqn3:=diff(y(x),x)=x+sin(y(x));
IC3:=[y(0)=2,y(3)=0];
DEplot(eqn3,[y(x)],x=-5..5,IC3,y=-5..5,arrows=comet,linecolor=BLACK);

produces the directions field but fails to produce the solution curves.

I have tried the same code on two different machines running Maple 16.02 with identical results.  I have also tried the code on Maple 16.01.  In this case the solution curves are produced.

We have 12 sets S[1], S[2], ..., S[12] and the listlist LL:=[[2, 4, 5, 8, 10], [1, 3, 6, 7, 11], [2, 5, 6, 9, 10],
 [1, 5, 6, 9, 11], [1, 3, 4, 7, 12], [2, 3, 4, 8, 12], [2, 5, 10, 11, 12], [1, 6, 10, 11, 12], [3, 4, 10, 11, 12], [1, 3, 7, 8, 9], [2, 4, 7, 8, 9], [5, 6, 7, 8, 9]] which means that the set S[1] does not intersect with the sets
S[2], S[4], S[5], S[8], and S[10] (PS. but S[1] intersects with S[1], S[3], S[6], S[7], S[9], S[11], S[12]) and so on. What...

How to find the integral
int((ln(sin(x)^2+1)-ln(cos(x)^2+1))/(-cos(2*x)), x = 0 .. (1/2)*Pi)
in closed form with Maple?

Some plotting options only allow view option.  Is there another way to specify axes ranges?

In a BubblePlot, I want to display only a portion of the graph.  view works fine for single graphs no problem, but when I combine it in display with multiple graphs I don't want the unviewed portions in Bubbleplot re-appearing.  


for example

with(Statistics):
with(plots):
a := BubblePlot([4, 5, 2, 3], [1, 2, 7, 8], [8, 1, 3, 2],view=[default,4..9])

restart;
eta:=10^(-2.623+(3388.8/(T-491))):
DG:=51749.47800-33.65211624*T-0.4480891609E-2*T^2:
N:=((T/eta)*(exp(108.3606-(3.02397E13/(T*(DG^2)))))):
B:=(1.5438E-6*A*(1307-A))/(10^(-2.623+3388.8/(A-491)))*(1-exp(-abs(51749.478-33.6521*A-0.0044809*A^2)/(8.31*A))):
G:=int(B,A=500..T):
H:=G^3:
J:=N*H:
q:=evalf(int(J,T=500..1307)):
Rcc:=evalf((((4*Pi/3)*q)/1E-6)^(1/4));

hi all;

my orginal function is :

f(x)=(29/2)*x^2-(899/24)*x^4+(26941/720)*x^6+...

i want plot pade approximation and orginal function in the maple 14, i wrote command as follows:

is my command  Correct?    

> with(numapprox);
> f := (29/2)*x^2-(899/24)*x^4+(26941/720)*x^6;
> e := pade(f, x, [5, 4]);
> with(plots);
> P := plot(f, x = 0 .. 1, style = point, color = "SteelBlue");

Why does Maple put space after a new string?

How to prevent Maple from doing that?

Screenshot

A plot command with the only argument of

sqrt(75-3*x^2)

used to work (up through version 15).  With 16.02 Maple produces nothing but axes.  It is still smart enough to use its default range for the x-axix and to figure out an appropriate range for the y-axis, but it cannot (will not) draw the curve.

If I were a student wanting to...

hi,

I am trying to make a custom on maple but when i get an error on dynamicSystems saying:

> sys := DynamicSystems[AlgEquation](eq, inputvariable = [Altura(t)], outputvariable = [Teste(t)]);
Error, (in DynamicSystems:-AlgEquation) algebraic equations cannot depend on past/future values of the input/output

But if i change AlgEquation to diffEquation i get no error. I dont have any diff equation on the system. This is happening with one of the "equations":

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