Dear all

I have an optimization problem. I would like to add a condition to obtain only a positive integer as the solution to the problem 

Positive_integer.mw

thanks

Dear all

I hope to find the maximum of a given function or show that the maximum is negative.

negative_maximum.mw

many thanks for your help

Dear all

I tried to minimize a function but maple 18 does not return any solution.

minimize(sqrt(1-(4*(x-1))*(1-y)/(x^2*(1+y))), x = 3 .. 4, y = 0 .. 1, location)

thanks for any help

Hi

Is seem that maple change the order of the equation when I convert the system to matrix form

1) Can I kee the same order of the equations proposed in the system in order to get a special matrix form

2) Can I display the vector used in generating matrix maybe the order of unknown is inverted

system.mw

many thanks

Dear all

I have a second order partial differential equation.

I addeded some boundary conditions.

I tried to use plot3d for a function u(x,y) but there is no figure displayed.

plot_3d_curve.mw

I use Maple 18

Many thanks for your help