Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

Hey,

I've got a nondifferentiable bounded multivariable function and I'd like to find a good approxiation of it's minumum and maximum.
Basicly, I'd like to automaticly be able to return the maximum and minimum of the height of the 3D-plot i have. That would just be perfect.
However, I can't find anything that does anything like this.....

 It is the mathematica code for bifurcation diagram of the model that i am working with now. is there anybody who can translate it into maple code? or does anyone can help me with making a bifurcation diagram for such a ODE system in maple??

 

Thanks in advance

 

Noticed that after simplify memory remains in some internal caches. How to free it after simplification done?

Could i manually reset status bar (i.e. memory and time values)? restart; doesn't help.

I was wondering if anyone knew of a procedure or patch for Newton's method with two variables. I checked maple help and there only seemed to be Newton's method for one variable.

It's for root finding when you have two functions, each with one or two variables; it involves a jacobian matrix.

I'm running Maple 13 btw.

I recently had a journal article accepted but was told that several of the graphs had to be redone because the axes were not thick enough to reproduce. Unfortunately, Maple has no way to edit the axes for thickness, so I had to export the differential equations to Matlab and integrate them there to get publication quality graphs. I have been having more trouble every year with the quality of Maple's graphics output, and this really puts a cherry on it. I would be pleased as punch if Maple could include a graph editor that would let us customize a graph to make it presentable to publishers. Maple does so many things so well it is a shame to leave this on the back burner.

In next procedure i calculated 1st derivative of H in y=0 via series approximation. And i see that some terms of series are missed. If i would raise second parameter to cnt+20 for FuncToSeries in GetLimitsArray it becomes better. But why it's not OK with even cnt+8? series_test.mw

I have the numerical solution of Phi(r,t) which is a numerical solution of a pde..

I want to find the following energy integral at fixed time say t=10 ,

Energy = int(a*r^2*Phi(r,10)^2 + 2*b*r*Phi(r,10)^3,r=0..infinity)... I could not find help in maple.. I guess I had to do the following

 

1. select the numerical solution dependent only on r at t=10 slice..

2.Use numerical methods to evaluate the integral..

 

Just try simplify :

to_zero.mw

with(Statistics):
Phiinverse := (x) -> Quantile(Normal(0, 1), x) :

evalf(Phiinverse(1-1/2^24));

and the result is 5.691523310-2.147372008*I

Now, I can get a real-valued solution to this by using the equivalent
functionality from stats instead of Statistics.

with(stats):
PhiinvClassic:= (x) -> statevalf[icdf, normald[0, 1]](x):

evalf(PhiinvClassic(1-1/2^24));

I have coded maple script and got that error. How can I fix it?

Here is my code error.mw. Please help.

Thanks

raw_panel_cuttin.doc

 Given a large rectangular wooden panel, you want to cut specific quantities of smaller rectangles from it.

Hi.

I have two complex functions with 3 variables: z1,z2,t . I need the first derivative of one of these functions with respect to one variable onle. Here is what I did:

f1:=z1(t)+2*z2(t):

f2:=z1(t)-3*z2(t):

diff(f1,z1(t)) this gives me an error. I need to write the variable as z1(t) not z1 because I'm doing some calculations for different time.

Thanks for the help.

Hello,

     I just purchased Maple and I am just learning calculus pretty much for fun.  I am reading "Calculus Made Easy" by Sylvanus Thompson.  On page 56 there is a set of equations for which I would like to know the steps.  I was wondering how to do this in Maple.  I played around with the Student and Tutor commands, but can't seem to get it to work.

     The equation is y+dy=(x+dx)^-2

 ...

hi,

how to change coordinate system? 

for example :

diff(f(x, y), x)   =   (diff(f(r, theta), r))*cos(theta)-(diff(f(r, theta), theta))*sin(theta)/r

 

thx;

aryan.

 

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