Please, anyone with usefull informations to hint me. Looking forward to your favorable response. 

Thanking you in advance

Hello,

how could I force Maple to solve this pde

pdsolve(y*(diff(f(x, y, z, w), x))-x*(diff(f(x, y, z, w), y))+w*(diff(f(x, y, z, w), z))-z*(diff(f(x, y, z, w), w)) = 0)

When I hit enter, it happens nothing.

How do you evaluate a function expression at given variable values?

f := 2*sin(x)-x^2/10.00:

eval(f, x = 5) gives 2*sin(5)-2.500000000

evalf(eval(f, x = 5)) gives -4.417848549

So is there a way we can just numerically calculate f(x) where x = 5?

Below is MAPLE code to simplify a series.  MAPLE expresses the result in terms of functions which many people are not familiar with.  Is there a way to express the answer in terms of more conventional functions expecially if N is a positive integer?

Download simplify.mw

How can I specify curve of function  when drawing set of functions in  one plot ,( curve1, curve2,...) in Legend

When attempting to numerically solve for a function using fsolv it is possible that the function has multiple roots.  So to focus on a particular region you specify a range such as:

xmax := fsolve(S, x = 0 .. 1/2)

Is it possible fsolve may not resolve the solution due to the fact that delta x is not small enough or does fsolve autonomously adjust delta x in order to find the solution?  If not, how do you manually dictate the delta x for the interval specified?

Hello,

Could you please help me with the following problem? I'm new to Maple and I need some help.

Find the real solutions of the following system(it's a nonlinear system):

x^2 + y^2 + z^2 = 4

x + y + z = 0

x*sin(y*z) = -1

Request help in solving the equation:

Eq_H_1 := C[11*m]*(int((t-(j-1)*T)*alpha*(-alpha*(K*T*beta+T*beta*j-K*T-T*beta-T*j-beta*t+T+t))^(-beta/(beta-1))*exp(-R[m]*t), t = (j-1)*T .. (K+j-1)*T))

Thanks

Hello,

Could you please help me with the following problem? I'm new to Maple and i need some help.

Solve the equation x^3 - a*x + 1 = 0 , in x. Determine the particular solution for a=1,2,... .Graphically represent the polynom that appears in the equation, in a case where the equation has a real root and in a case where the equation has 3 real roots.

Thank you !

Hi

I d like to limit my solution to a real (non complex) solution
There should be a simple solution to my calculation but maple can t process the solutions in one of my "solve" commands.

How can do I tell maple to limit itself to one
 

Download mathias.mw

simple non complex solutions ?

Hey mapleprimes

I am trying to get the sum function to give me n variables, well not sure how to explain it, so let me show:

sum(x__i, i = 0 .. 2)

I was expecting to get x__0 + x__1 + x__2

But instead i got:   3*x__i

Thanks for the help in advance :)

Edit:

My problem is gone, but must be some weird character that is playing games with me or something


 

Hi

I m trying to do a nested loop but for some reason maple tells me my for loop is unterminated 

I d love some feedback on my code and on how to make it work
 

Download mathias.mw

Thanks in advance

Hi all, 

Please help me to solve this system of equations.

Download System.mwSystem.mw

Hi everyone,
I have to make a project that need to use openmaple in java. The problems is when i get the output data of the textCallBack method, i try to convert the output to utf-8 format using the UTF8Encoder provided in java Maple JAR file in order to display Vietnamese language but it doesn't work (the output type is String). Are there any solutions? Thank you.