Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

On the main page for the Rubi rule-based integrator, there is a table comparing results of Rubi against Maple and Mathematica.

On the face of it, the Maple results don't look so good. Maple is claimed as scoring about 82% correct on the author's example test suite. But only 42% of the suite gets an "optimal" result from Maple. The other 40% that Maple is claimed to get correct have results that are described as "Messy:

I've seen a few posts regarding implicit functions in Maple, but I've not seen any that can help my case...

(I should point out that I am new to Maple as well).

My function is hc=[1/(2π*(√2)*a*f2)]*ln(hc/4), and f=(a0-a)/a0

I have managed to get so far- Maple has accepted the function as an equation, and I want to plot hc as a function of f, which, as you can see, varies according to a. I've tried...

Hey
I have just started with maple and I it is a little bit confusing for me  an I am tryin to implement the sieve of eratosthenes algorithm

but I am still getting strang warnings and the programm does not function as wanted so i wanted to use the debugger but
it is not working(it is like disabled)
I have maple 12
I will be glad to get a help
thanks 

 

Hi,

A while back, I was trying to use Maple's NonlinearFit function, but I kept getting an error regarding the input.  Any help you might be able to give me would be appreciated.  Thanks much.

Y := [96, 183, 290, 472, 711, 1191, 1746, 2573, 3507, 4410, 5133, 5597, 5948, 6294, 6408, 6511, 6559, 6596, 6618]

Hey there,

 

So I'm trying to throw into Maple for analysis the Cauchy problem:

g := piecewise((t, y) <> (0, 0), 4*t^3*y/(t^4+y^2), (t, y) = (0, 0), 0)

y(0)=0.

Is this possible? I'm investigating Uniqueness/existence on it (even though I know the solution already, given that it's Bernoulli in dt/dy with general solution: y(t)=c^2-sqrt(t^4+c^4)  , c is an element of the reals.

I've done some googling and looking around...

restart; interface(version); # Maple 15
Digits:=40;
# symbolic expression
t:=1/292/(-77796+62196*I*3^(1/2))^(1/3)*73^(1/2)*
  ((-77796+62196*I*3^(1/2))^(1/3)*
  (-3*(-77796+62196*I*3^(1/2))^(2/3)-
  7812+688*(-77796+62196*I*3^(1/2))^(1/3)+
  3*I*3^(1/2)*(-77796+62196*I*3^(1/2))^(2/3)-7812*I*3^(1/2)))^(1/2)
  -0.3; # <--- does that give the trouble ?
simplify(t); # makes it a float ...

  0...

assignment_3_with_er.docx

 

I typed this file above exactly as my professor gave us but, I received this message, and the link to the website has no help for this.  Can someone help his or my resolve my mistake?

 

 

Hello to all,

 

I have a chunk of letters, numbers and others symbols like in this extract:

.....XRIH*zAv/(z*Bf3)+3*AkQ4xBpTbCYJVq6qCRRUYJy1aBvSjuQXp+zr6kmMEuNR+9*u9zugTalYwXJA*mBhaiM+8*WrkyyflSAs0JssjHLArZ+l5M1sWtcMznmkmu1+NmmSb7dsacr3qJkzQH*dE3yQlI0Ly2RGa1*Yr/ZlvZFCwCiQyVTQ2GflsnOBZTf05W4Ul35uZMHFxhy1tipPyK+iHfus/mJVhEeluq9vtVzEzwbPWav+w11/ii14f78yXqsqH+XU2m....

My goal is to be able to enter that chunk into Maple for character manipulation like searching if, for example, Qxp+zr6km is part of that chunk as is (and if possible his location).  Since there is some "+", I can't define it with chunk :=.  The source is a *.txt file.  Maybe a readdata?

I am quite busy for the moment so is there someone kind enough to help me.

Thanks in advance

by trying to solve the following system of equations:
sys := {V[0]*(diff(P[0](t), t))/(k[B]*T0) = -z*C*A[1]*P[0](t)*(P[1](t)/P[0](t))^(1/gamma)*sqrt(2*gamma*(1-(P[1](t)/P[0](t))^((gamma-1)/gamma))/((gamma-1)*k[B]*T0*m0)), V[1]*(diff(P[1](t), t))/(k[B]*mu[T][1](t)) = z*C*A[1]*P[0](t)*(P[1](t)/P[0](t))^(1/gamma)*sqrt(2*gamma*(1-(P[1](t)/P[0](t))^((gamma-1)/gamma))/((gamma-1)*k[B]*T0*m0))-C*A[2]*P[1](t)*(P[2](t)/P[1](t))^(1/gamma)*sqrt(2*gamma*(1-(P[2](t)/P[1](t))^((gamma-1)/gamma))/((gamma-1)*k[B...

I am trying to calculate something but my computer(dual-core with 4GB memory) is too slow/old for it.

just copy and paste these into a new blank Worksheet Mode document and Edit->Execute->Worksheet and then post your result here. Thanks in advance!!!

G := [a[1]*(y[0]^2)-y[1]^2*a[1]-a[1]*(y[3]^2)+2*a[2]*y[0]*y[3]-2*a[3]*y[0]*y[2]-a[1]*(y[2]^2)+b[1]*y[0]+3*y[1]*(y[0]^2)+y[1]*b[0]-y[1]^3-y[1]*(y[2]^2)-y[1]*(y[3]^2)+c[1]+b[2]*y[3]-b[3]*y[2], -2*a[1...

Hey, I've been trying to calculate the mean from a set of measurements I took in an experiment. The measurements are (76.0,75.9,76.1,75.9,76.0,76.1,76.1,76.0,75.9,76.0,76.0,75.9,75.9,75.9,76.0,75.8,76.0,76.0,75.9,75.9,75.9,75.9,75.9,75.9,75.9,76.0,75.9,76.0,76.0,76.0), and I always do

y1:=(all of the measurements I just listed);

then I try to do the mean of y1

Mean(y1);

but everytime I try this an error comes up. 

Error, (in Statistics:-Mean...

When I type

cos(x), sin(x)

and start the Plot Builder (using the contextual menu) the first option it gives me is for a 2-D plot.  However, when I type

cos(x), x

and start the Plot Builder the first option is a 2-D polar plot and the "standard" 2-D plot is nowhere on the list.  Is this a known bug?  (I'm using Maple 15.01 on Windows 7.)

 

Thanks,

We have the following sequence of natural numbers 1, 4, 9, 13, 11, 27, 25, 37,.. . What is the next term?
Is it possible to find it with Maple? The approach
> with(gfun):
>l:=[1, 4, 9, 13, 11, 27]:
>rec:=listtorec(l,u(n));
fails because it produces a noninteger value of u(n) for some natural values of n.

 

Hello all,

I'm familiar with using _ and ^ to enter subscripts and superscripts in document mode. However, the only way I know of moving out of those modes is to use the arrow keys. I was wondering if there was an alternative shortcut that wouldn't require me to move my hands from the home row?

Thanks,

Amr

 

                

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