Who knows what Maple does wrong on this one?

Download sum.mw

Does any one know how to derive this model in Maple?

The_Price_is_Righ.pdf

I did two polar plots as you see and wanted to color the region between them.

> with(plots);
> a1 := polarplot(1, t = 0 .. 6*Pi*(1/3), thickness = 2, filled = true, color = black);
> a2 := polarplot(2*cos(t), t = 0 .. 6*Pi*(1/3), thickness = 2);
> a3 := polarplot(2*cos(t), t = -(1/3)*Pi .. (1/3)*Pi, filled = true, thickness = 2);
> display(a1, a2, a3);

The program makes the region colored red but there is an overlapping part which...

Can you help me how to program about the interference of wave on the water surface in Maple ?

Hi, 

I've bought NAG C Library for my mac in order to use it in Maple.

However, it seems that Maple doesn't know where to search for it.
Indeed, it returns

Error, (in NAG:-h03abc) external linking: error loading external library libnagc_nag.dylib: dlopen(libnagc_nag.dylib, 129): image not found 

I've installed NAG C Library in usr/Library

Thank you very much for your help 

Further tags : implicit form, Matlab codegen for GPOPS purposes

Hi there,

I would like to introduce my self and ask you for an advice. 

I have a four linked robot that i would really like to control by the meaning of the optimal control theory. The arm has 4 actuators (giving torques U) in corrispondence of 4 rotational joints. P parameters describe the system.

I got ht edynamic system with the Lagrangian method and now I have 4 2nd order...

So currently i am trying to programm a game. for that i would need a Textbox that is updating once the player makes an input. I have a textbox TB1 and a button with the action linked. the action that the button should make is calling an external procedure which in turn updates the textbox. But i currently i keep getting the following error expresion:

Error, (in Maplets:-Tools:-Set) invalid argument(s): [TB1]::string = [7, 8, 9]

So what die i do wrong.

How to write notation for logical induction programming in Maple like F# or Haskell having tuples?

such as 

Conj(A,Disj(B,C)) ...

I am trying to get Maple 16.02 to evaluate

cos(Pi/4 - I*ln(2))

using exactly the syntax I just typed.  The correct answer is 3/4 + I/4.  I cannot get Maple to give me this correct, simplified answer.  I have tried "expand", "simplify", and "value", and I get garbage containing terms such as

"sinh((1/2)*ln(2))".

How can I force Maple to give me the simplest answer?

Can someone help me whith this plot? Somehow Maple always says unable to evaluate the function to numeric values in the region.

File is attached.

Plots.mw

The equaltion given below has 4 roots. I only want to see the 2nd solution for each alpha and it will come in a list. I don't want to see all the solutions. What to do

for alpha from .4 by .1 to 5 do
S := solve(x^4-alpha, x);
S[2] ;
end do;

Hi all,

I need to solve this linear system:

R11+R12+fx=1

R21+R22+fy=1

R31+R32+fz=1

R11+R21+R31=1

R12+R22+R32=1

R11*R22*fz+R12*fy*R31+fx*R21*R32-R31*R22*fx-R32*fy*R11-fz*R21*R12=1

It is a solution for a 3D rotation matrix in which I know the last coloumn (fx,fy,fz) and I need to find the other six elements of the matrix R11,R12...Obvioulsy there are infinite solution, but in particular...