How can plot  f := proc (x, y) options operator, arrow; sin(x)*cos(y) end proc  as surface and contour (contour is project on surface)

Hi

I want to solve quadratic eqution involving more than 2 parameters...want to analize unique soltuions and real roots also want to plot the real and unique region on graphs ....thanx

the equation is -delta*(Q*S*alpha*b-a*alpha^2+M*c+b*delta) where alpha is the varible and rest are paramters 

Hei!

In my Maple project I want to put a simple sin graph on top of an image. But how do I create a background image with a graph on top?

Download Profit_code.mw

why i can not evaluate 29 polynomial. maple try to evaluate last 7hr, how many time required too solve it?

How to change the numbers shown in the diagram shapes from y=0.5- to rigth form y=-0.5a.mw

Download a.mw

How to calculate the following for a=1,b=3

where  is the Wigner 3j symbol.

Top part of worksheet gives me a and b; lower part does not

Please tell me where I go wrong. Thanks

Test1.mw

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Hello,

Please , how can we plot two figures with different X-axis and the same Y-axis ?

Thank you

Download dummy2.mw

Hi,

I'm trying to learn the dsolve command on Maple. I have a second order differential equation and two initial conditions to solve it.

I'm following maple help's procedure to solve it. But in the end i don't get my constants solved (which i do if i use Matlab i.e.)

What am i doing wrong?

restart;
ode := diff(Y(y), y, y) = 3*(1-(y/b)^2)*q/(4*k*b);
                                    /     2\  
                                    |    y |  
                                  3 |1 - --| q
                                    |     2|  
                  d  / d      \     \    b /  
                 --- |--- Y(y)| = ------------
                  dy \ dy     /      4 k b    
dsolve(ode);
                         2       4                
                    3 q y     q y                 
             Y(y) = ------ - ------- + _C1 y + _C2
                    8 b k        3                
                             16 b  k              
ics := Y(b) = Ts-Tb; (D(Y))(-b) = 0;
                         Y(b) = Ts - Tb
                          D(Y)(-b) = 0
dsolve({ics, ode});
                      2       4          
                 3 q y     q y           
          Y(y) = ------ - ------- + _C1 y
                 8 b k        3          
                          16 b  k        

               16 _C1 b k + 16 Tb k - 16 Ts k + 5 b q
             - --------------------------------------
                                16 k                 

or a screenshot:

I have a package that uses fsolve, a Maple function known (to me) to often fail when UseHardwareFloats is set to true. Since I set UseHardwareFloats:=true in my .mapleinit (for I want hardware performance when using floats) I set UseHardwareFloats:=deduced; in the ModuleLoad routine of this package. ModuleLoad executes as evidenced by a print statement in the routine that does in fact print, and within ModuleLoad, UseHardwareFloats is set to deduced. But at the worksheet level, UseHardwareFloats remains set to true.
 The only way I can set it is to set it explicitly in the sheet that calls the package. I tried various things, like putting it into the body of the module, using :-UseHardwareFloats, and so on. Nothing seems to work. While not a fatal issue it is bothersome & has had me run around with code not working several times.

Any hint would be appreciated.

Mac Dude

I am preparing a Slideshow with Maple 2018.2
I want to use a small laptop to do the presentation with MaplePlayer 2018.1 without purchasing and installing the hole stuff.

The presentation contains some 3d animated plots controlled by some DocumentTools,Components,Button components just
to start and stop the animations during my talk.

The Player dont appear to run (!!!)  the worksheet at startup, so the Plot components dont get an identity and the Button components dont get the Plot components identity neither to set their "play" property. As a consequence Button components appear useless.

Is there any mean to make this work?

Thanks.

@ecterrab 

To ensure the general accessibility of my Maple worksheets for Mathematics for Chemistry, I work with the classic interface.  When I tried to install first Maple 2018.1, when it became available, and then Maple 2018.2 when it became available, the output from use of either technical input in text lines, using function key F5, or simply from an executable input command or statement was corrupted.  I reported this behaviour but apparently the remedy has not yet been incorporated.  To avoid these problems, I had to delete Maple 2018.2 and to reinstall Maple 2018.0.  

     When I, in good faith, with that Maple 2018.0 reinstalled tried to install Maplesoft Physics Updates version 241, according to the encouragement of Edgardo Cheb-Terrab above, I discovered the same corruption in the output when I entered a procedure, for instance this one,

ft := proc(kk,ll,mm)
>      h^(-3/2)*int(int(int(expand(exp(-(2*Pi*I/h)*(sin(theta)*sin(Theta)*cos(Phi-phi)+cos(theta)*cos(Theta))*r*P)
>            *eval(psi,[k=kk,l=ll,m=mm])*r^2*sin(theta), trig),phi=0..2*Pi),theta=0..Pi),r=0..infinity);
> end proc;
  ft := proc(kk, ll, mm)
    1/h^(3/2)*int(int(int(expand(exp(-2*I*Pi*(in(theta)*sin(Theta)*cos(Phi - phi)+ cos(theta)*cos(Theta))*r*P/h)*eval(psi, [k = kk, l = ll,  m = mm])*r^2*sin(theta), trig), phi = 0 .. 2*Pi), theta = 0 .. Pi), r = 0 .. infinity)
end proc

namely that, instead of * in any location in the output that you can read above, there appears a large U.  Why is the testing by Dr. Cheb-Terrab and others connected with Maplesoft done in such a slipshod manner?  After all these years one should expect better control of quality than is evidently the case.  It seems that I must once again reinstall Maple 2018.0 to regain the full functionality of Maple 2018 without the deficiencies introduced in both the updates and the Physics package.  This condition is disgraceful and intolerable.