## Set alpha of plot symbol...

How can I set the alpha for the plot symbols? I would like to add some alpha for blending purposes(will help with the visual in my case).

Idealy I would like to plot a 2d "guassian" fade.

## How to importe a figure from Mathematica to Maple...

A warm greeting for all

How to import a figure from Mathematica to Maple.

Amr

## How to create n-th differentiation is an operator?...

I have a dependent and independent variables u(x),v(x),w(x),....diff( u(x),x$n)=U(k),diff( v(x),x$n)=V(k)......

Is it possible to create, diff(     , x$n) is an operator or any differentiable function? ## How do I connect to MSQL in Maple?... Asked by: I'm having trouble connecting from Maple on Windows 10 to MSQL Server. I tried Microsoft recommended drivers such as sqljdbc_6.4.0.0, did (as I thought) all required steps. The only invariable result I get is "Cannot load driver". I was wandering if anyone had implemented such a construction. Driver name & version , connection string and Java version would be greatly appreciated. Another option is to have any driver, which connects to any of standard databases (Oracle, MySQL). The only limitation is- it must be from Windows 7 or 10. Thanks. A.B. ## Why does maple calculate 2 different results for t... Asked by: The results should be the same, right?  = = = Download test.mw ## How do i get my computation time... Asked by: I am trying to compare time taken in minutes for each iterative model(Jacobi, Gauss-Seidel and SOR) to complete, so as to figure out the iterativre model with a faster time of convergence but i don't know the command to initiate. ## CoolProp fsolve - Flow Through an Expansion Valve... Asked by: Hello, I want to evaluate the change of temperature and energy loss during the flow through an expansion valve. But the command fsolve this does not work with CoolProp. The following command is just repeated, but gives no result. fsolve({ThermophysicalData:-Property("D", "H2", "temperature" = TTT, "pressure" = ppp) = 31.13, ThermophysicalData:-Property("H", "H2", "temperature" = TTT, "pressure" = ppp) = 4.098640000*10^6}, {TTT, ppp}) Regards, Andreas ## Computing radius and centers of disjoing balls... Asked by: Hi! Assume that we have, in the cube C:=[-1,1]^N, for a fixed integer N>=2, a point X1 and cosider the (closed) ball centered at X1 and radius R1:=0.6. Fixed an integer m>2, Somebody can indicate me how to compute the centers (belonging to C) and the radius of m disjoint balls with the above ball? That is to say, compute points X2,...,Xm (in C) and positive numbers R2,...,Rm such that the intersection of the (closed) balls B(Xj,Rj) for j=1,...,m be empty. Some suggestion? Many thanks in advance for your comments. ## How to plot a function with a max or a min in it?... Asked by: If i have a function like: f(d) = 1- inf { a \in [0,1]: a = e^{d(a-1)} } how can i plot it in maple? Or simple one function with a maximum over an intervall in it? ## Problem in Solving integral in Maple... Asked by: Hello, I have a problem in solving an integral in maple. I can't solve the below integral in maple and it returns the integral itself to me. I also attach an image from the integral if here is not clearly shown. I want maple to return me just a number. can anyone help me in this? Thank you ## fix the collect ... Asked by: restart; T := mu+lambda*H(xi)+(v-1)*H(xi)^2; 2 mu + lambda H(xi) + (v - 1) H(xi) u[0] := a[0]+a[1]*(d+H(xi))+a[2]/(d+H(xi))+a[3]*(d+H(xi))^2+a[4]/(d+H(xi))^2; a[2] 2 a[0] + a[1] (d + H(xi)) + --------- + a[3] (d + H(xi)) d + H(xi) a[4] + ------------ 2 (d + H(xi)) diff(u[0], xi); / d \ a[2] |---- H(xi)| / d \ \ dxi / a[1] |---- H(xi)| - ----------------- \ dxi / 2 (d + H(xi)) / d \ 2 a[4] |---- H(xi)| / d \ \ dxi / + 2 a[3] (d + H(xi)) |---- H(xi)| - ------------------- \ dxi / 3 (d + H(xi)) collect(%, diff(H(xi), xi)); / a[2] 2 a[4] \ / d |a[1] - ------------ + 2 a[3] (d + H(xi)) - ------------| |---- H(xi | 2 3| \ dxi \ (d + H(xi)) (d + H(xi)) / \ )| / d[1] := (a[1]-a[2]/(d+H(xi))^2+2*a[3]*(d+H(xi))-2*a[4]/(d+H(xi))^3)*T; / a[2] 2 a[4] \ / |a[1] - ------------ + 2 a[3] (d + H(xi)) - ------------| \mu | 2 3| \ (d + H(xi)) (d + H(xi)) / 2\ + lambda H(xi) + (v - 1) H(xi) / diff(d[1], xi); / / d \ / d \\ |2 a[2] |---- H(xi)| 6 a[4] |---- H(xi)|| | \ dxi / / d \ \ dxi /| |------------------- + 2 a[3] |---- H(xi)| + -------------------| | 3 \ dxi / 4 | \ (d + H(xi)) (d + H(xi)) / / 2\ / a[2] \mu + lambda H(xi) + (v - 1) H(xi) / + |a[1] - ------------ | 2 \ (d + H(xi)) 2 a[4] \ / / d \ + 2 a[3] (d + H(xi)) - ------------| |lambda |---- H(xi)| 3| \ \ dxi / (d + H(xi)) / / d \\ + 2 (v - 1) H(xi) |---- H(xi)|| \ dxi // collect(%, diff(H(xi), xi)); // 2 a[2] 6 a[4] \ / ||------------ + 2 a[3] + ------------| \mu + lambda H(xi) || 3 4| \\(d + H(xi)) (d + H(xi)) / 2\ / a[2] + (v - 1) H(xi) / + |a[1] - ------------ + 2 a[3] (d + H(xi)) | 2 \ (d + H(xi)) 2 a[4] \ \ / d \ - ------------| (lambda + 2 (v - 1) H(xi))| |---- H(xi)| 3| | \ dxi / (d + H(xi)) / / d[2] := ((2*a[2]/(d+H(xi))^3+2*a[3]+6*a[4]/(d+H(xi))^4)*(mu+lambda*H(xi)+(v-1)*H(xi)^2)+(a[1]-a[2]/(d+H(xi))^2+2*a[3]*(d+H(xi))-2*a[4]/(d+H(xi))^3)*(lambda+(2*(v-1))*H(xi)))*T; // 2 a[2] 6 a[4] \ / ||------------ + 2 a[3] + ------------| \mu + lambda H(xi) || 3 4| \\(d + H(xi)) (d + H(xi)) / 2\ / a[2] + (v - 1) H(xi) / + |a[1] - ------------ + 2 a[3] (d + H(xi)) | 2 \ (d + H(xi)) 2 a[4] \ \ / - ------------| (lambda + 2 (v - 1) H(xi))| \mu + lambda H(xi) 3| | (d + H(xi)) / / 2\ + (v - 1) H(xi) / eq := (2*k*k)*w*beta*d[2]-(2*alpha*k*k)*d[1]-2*w*u[0]+k*u[0]*u[0]; 2 // 2 a[2] 6 a[4] \ / 2 k w beta ||------------ + 2 a[3] + ------------| \mu || 3 4| \\(d + H(xi)) (d + H(xi)) / 2\ / a[2] + lambda H(xi) + (v - 1) H(xi) / + |a[1] - ------------ | 2 \ (d + H(xi)) 2 a[4] \ + 2 a[3] (d + H(xi)) - ------------| (lambda + 2 (v - 1) H(xi) 3| (d + H(xi)) / \ / 2\ 2 / )| \mu + lambda H(xi) + (v - 1) H(xi) / - 2 alpha k |a[1] | | / \ a[2] 2 a[4] \ / - ------------ + 2 a[3] (d + H(xi)) - ------------| \mu 2 3| (d + H(xi)) (d + H(xi)) / 2\ / + lambda H(xi) + (v - 1) H(xi) / - 2 w |a[0] | \ a[2] 2 + a[1] (d + H(xi)) + --------- + a[3] (d + H(xi)) d + H(xi) a[4] \ / a[2] + ------------| + k |a[0] + a[1] (d + H(xi)) + --------- 2| | d + H(xi) (d + H(xi)) / \ 2 a[4] \ + a[3] (d + H(xi)) + ------------|^2 2| (d + H(xi)) / value(%); 2 // 2 a[2] 6 a[4] \ / 2 k w beta ||------------ + 2 a[3] + ------------| \mu || 3 4| \\(d + H(xi)) (d + H(xi)) / 2\ / a[2] + lambda H(xi) + (v - 1) H(xi) / + |a[1] - ------------ | 2 \ (d + H(xi)) 2 a[4] \ + 2 a[3] (d + H(xi)) - ------------| (lambda + 2 (v - 1) H(xi) 3| (d + H(xi)) / \ / 2\ 2 / )| \mu + lambda H(xi) + (v - 1) H(xi) / - 2 alpha k |a[1] | | / \ a[2] 2 a[4] \ / - ------------ + 2 a[3] (d + H(xi)) - ------------| \mu 2 3| (d + H(xi)) (d + H(xi)) / 2\ / + lambda H(xi) + (v - 1) H(xi) / - 2 w |a[0] | \ a[2] 2 + a[1] (d + H(xi)) + --------- + a[3] (d + H(xi)) d + H(xi) a[4] \ / a[2] + ------------| + k |a[0] + a[1] (d + H(xi)) + --------- 2| | d + H(xi) (d + H(xi)) / \ 2 a[4] \ + a[3] (d + H(xi)) + ------------|^2 2| (d + H(xi)) / expr := simplify(%); Error, (in simplify) too many levels of recursion temp := algsubs(d+H(xi) = freeze(d+H(xi)), numer(expr)); expr thaw(collect(temp, freeze(d+H(xi)))/denom(expr)); expr collect(%, H(xi)); ## Why certain delimeters act in a strange way... Asked by: Can someone please explain to me why this occurs:  >  >  (1)  >  (2)  >  (3)  > Download this_makes_me_grumpy.mw ## Solving inequalities with conditions... Asked by: Hello everyone, I'm struggling to solve inequalities with conditions. I have this inequality with 4 variables, which I have some conditions. However, I can't implement this conditions to the inequality and solve using the 'solve' command. Can anybody help me? inequality.mw ## What does VectorCalculus:-Curvature represent?... Asked by: Hi, I'm surprised by the result of the procedure VectorCalculus:-Curvature which is always a positive scalar quantity: For instance c := VectorCalculus:-Curvature(<x, sin(x)>, x): plot(c, x=0..2*Pi) # c >=0 for all x in [0, 2*Pi] In the help pages it's written that the (signed) curvature for a function y(x) is y''/(1+y' 2)(3/2). y := sin(x): c := diff(y, x$2) / (1+diff(y,x)^2)^(3/2):
plot(c,  x=0..2*Pi)
# c < 0 if x in (0, Pi)  and  c > 0 if x in (Pi, 2*Pi)