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n11n11

n11n1 m

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7 years, 241 days
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@Kitonum  thank you...

n11n11 10
December 29 2017
0 0

@Kitonum 

thank you

@Kitonum      ..!you ca...

n11n11 10
December 29 2017
0 0

@Kitonum 

 

  ..!you can solve it partially manually, using known methods. 

you mean pdsolve 

can you help me 

@gkokovidis    ...

n11n11 10
December 29 2017
0 0

@gkokovidis 
 

> 

``
> 

Eq := diff(u(x, y), x, x)+diff(u(x, y), y, y) = 0;

diff(diff(u(x, y), x), x)+diff(diff(u(x, y), y), y) = 0

 (1)
> 

bc := u(x, 0) = 0, u(x, a) = 0, u(0, y) = sin(y), u(infinity, y) = 0;

u(x, 0) = 0, u(x, a) = 0, u(0, y) = sin(y), u(infinity, y) = 0

 (2)
> 

`assuming`([pdsolve({Eq, bc}, u(x, y))], [a > 0]);
> 

F := eval(rhs(%), [a = 5, infinity = 50])

Error, invalid input: rhs expects 1 argument, but received 4

  
> 

plot3d(F, x = 0 .. 5, y = 0 .. Pi);

Warning, expecting only range variables [x, y] in expression F to be plotted but found name F

  

 
> 

``


 

Download 21m.mw
 

> 

``
> 

Eq := diff(u(x, y), x, x)+diff(u(x, y), y, y) = 0;

diff(diff(u(x, y), x), x)+diff(diff(u(x, y), y), y) = 0

 (1)
> 

bc := u(x, 0) = 0, u(x, a) = 0, u(0, y) = sin(y), u(infinity, y) = 0;

u(x, 0) = 0, u(x, a) = 0, u(0, y) = sin(y), u(infinity, y) = 0

 (2)
> 

`assuming`([pdsolve({Eq, bc}, u(x, y))], [a > 0]);
> 

F := eval(rhs(%), [a = 5, infinity = 50])

Error, invalid input: rhs expects 1 argument, but received 4

  
> 

plot3d(F, x = 0 .. 5, y = 0 .. Pi);

Warning, expecting only range variables [x, y] in expression F to be plotted but found name F

  

 
> 

``


 

Download 21m.mw

 

@Kitonum  i wrote like u but give ...

n11n11 10
December 28 2017
0 0

@Kitonum 

i wrote like u but give me erorr

i use maple 2015

@AmusingYeti thank you...

n11n11 10
December 01 2017
0 0

@AmusingYeti

thank you

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