First order PDE [closed]
1
Right ok I’m stuck on trying to solve this using method of characteristics. I have tried using $au_x + bu_y = c$ but because it’s an $yx^2$ I can’t go further.
$u_x + (yx^2 +x)u_y = 1$
pde
asked Dec 4 '18 at 15:12
K.doe
61
closed as off-topic by Saad, MisterRiemann, rtybase, Leucippus, John B Dec 5 '18 at 1:04
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – MisterRiemann, rtybase, Leucippus, John B
If this question can be reworded to fit the rules in the help center, please edit the question.
add a comment |
1
Right ok I’m stuck on trying to solve this using method of characteristics. I have tried using $au_x + bu_y = c$ but because it’s an $yx^2$ I can’t go further.
$u_x + (yx^2 +x)u_y = 1$
pde
asked Dec 4 '18 at 15:12
K.doe
61
closed as off-topic by Saad, MisterRiemann, rtybase, Leucippus, John B Dec 5 '18 at 1:04
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – MisterRiemann, rtybase, Leucippus, John B
If this question can be reworded to fit the rules in the help center, please edit the question.
Tell something about the context, why you want to solve it, what's your background...
– Rafa Budría
Dec 4 '18 at 16:39
It's an example question I don't understand. I got $a=1 b=yx^2 + x and c=1$ when I assign to the general case I don't know where I would go next
– K.doe
Dec 4 '18 at 18:58
The solution can be expressed with elementary functions, but one of the two equations for the characteristics is complicated (The other being $u=x+c$). Too complicated. What is the example for?
– Rafa Budría
Dec 4 '18 at 20:08
I'm a student and it's just an example that was asked to work on in own time.. I know how to go about it if it didn't include $x^2$ looking for help starting it off then I can continue to work through
– K.doe
Dec 4 '18 at 23:01
You have an answer, the two equations for the characteristics, in my previous comment. Only need one step more for the general solution.
– Rafa Budría
Dec 5 '18 at 7:39
add a comment |
1
1
1
1
Right ok I’m stuck on trying to solve this using method of characteristics. I have tried using $au_x + bu_y = c$ but because it’s an $yx^2$ I can’t go further.
$u_x + (yx^2 +x)u_y = 1$
pde
asked Dec 4 '18 at 15:12
K.doe
61
Right ok I’m stuck on trying to solve this using method of characteristics. I have tried using $au_x + bu_y = c$ but because it’s an $yx^2$ I can’t go further.
$u_x + (yx^2 +x)u_y = 1$
pde
pde
asked Dec 4 '18 at 15:12
K.doe
61
asked Dec 4 '18 at 15:12
K.doe
61
asked Dec 4 '18 at 15:12
K.doe
61
asked Dec 4 '18 at 15:12
K.doe
61
asked Dec 4 '18 at 15:12
K.doe
61
61
closed as off-topic by Saad, MisterRiemann, rtybase, Leucippus, John B Dec 5 '18 at 1:04
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – MisterRiemann, rtybase, Leucippus, John B
If this question can be reworded to fit the rules in the help center, please edit the question.
closed as off-topic by Saad, MisterRiemann, rtybase, Leucippus, John B Dec 5 '18 at 1:04
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – MisterRiemann, rtybase, Leucippus, John B
If this question can be reworded to fit the rules in the help center, please edit the question.
Tell something about the context, why you want to solve it, what's your background...
– Rafa Budría
Dec 4 '18 at 16:39
It's an example question I don't understand. I got $a=1 b=yx^2 + x and c=1$ when I assign to the general case I don't know where I would go next
– K.doe
Dec 4 '18 at 18:58
The solution can be expressed with elementary functions, but one of the two equations for the characteristics is complicated (The other being $u=x+c$). Too complicated. What is the example for?
– Rafa Budría
Dec 4 '18 at 20:08
I'm a student and it's just an example that was asked to work on in own time.. I know how to go about it if it didn't include $x^2$ looking for help starting it off then I can continue to work through
– K.doe
Dec 4 '18 at 23:01
You have an answer, the two equations for the characteristics, in my previous comment. Only need one step more for the general solution.
– Rafa Budría
Dec 5 '18 at 7:39
add a comment |
Tell something about the context, why you want to solve it, what's your background...
– Rafa Budría
Dec 4 '18 at 16:39
It's an example question I don't understand. I got $a=1 b=yx^2 + x and c=1$ when I assign to the general case I don't know where I would go next
– K.doe
Dec 4 '18 at 18:58
The solution can be expressed with elementary functions, but one of the two equations for the characteristics is complicated (The other being $u=x+c$). Too complicated. What is the example for?
– Rafa Budría
Dec 4 '18 at 20:08
I'm a student and it's just an example that was asked to work on in own time.. I know how to go about it if it didn't include $x^2$ looking for help starting it off then I can continue to work through
– K.doe
Dec 4 '18 at 23:01
You have an answer, the two equations for the characteristics, in my previous comment. Only need one step more for the general solution.
– Rafa Budría
Dec 5 '18 at 7:39
Tell something about the context, why you want to solve it, what's your background...
– Rafa Budría
Dec 4 '18 at 16:39
Tell something about the context, why you want to solve it, what's your background...
– Rafa Budría
Dec 4 '18 at 16:39
It's an example question I don't understand. I got $a=1 b=yx^2 + x and c=1$ when I assign to the general case I don't know where I would go next
– K.doe
Dec 4 '18 at 18:58
It's an example question I don't understand. I got $a=1 b=yx^2 + x and c=1$ when I assign to the general case I don't know where I would go next
– K.doe
Dec 4 '18 at 18:58
The solution can be expressed with elementary functions, but one of the two equations for the characteristics is complicated (The other being $u=x+c$). Too complicated. What is the example for?
– Rafa Budría
Dec 4 '18 at 20:08
The solution can be expressed with elementary functions, but one of the two equations for the characteristics is complicated (The other being $u=x+c$). Too complicated. What is the example for?
– Rafa Budría
Dec 4 '18 at 20:08
I'm a student and it's just an example that was asked to work on in own time.. I know how to go about it if it didn't include $x^2$ looking for help starting it off then I can continue to work through
– K.doe
Dec 4 '18 at 23:01
I'm a student and it's just an example that was asked to work on in own time.. I know how to go about it if it didn't include $x^2$ looking for help starting it off then I can continue to work through
– K.doe
Dec 4 '18 at 23:01
You have an answer, the two equations for the characteristics, in my previous comment. Only need one step more for the general solution.
– Rafa Budría
Dec 5 '18 at 7:39
You have an answer, the two equations for the characteristics, in my previous comment. Only need one step more for the general solution.
– Rafa Budría
Dec 5 '18 at 7:39
add a comment |
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Tell something about the context, why you want to solve it, what's your background...
– Rafa Budría
Dec 4 '18 at 16:39
It's an example question I don't understand. I got $a=1 b=yx^2 + x and c=1$ when I assign to the general case I don't know where I would go next
– K.doe
Dec 4 '18 at 18:58
The solution can be expressed with elementary functions, but one of the two equations for the characteristics is complicated (The other being $u=x+c$). Too complicated. What is the example for?
– Rafa Budría
Dec 4 '18 at 20:08
I'm a student and it's just an example that was asked to work on in own time.. I know how to go about it if it didn't include $x^2$ looking for help starting it off then I can continue to work through
– K.doe
Dec 4 '18 at 23:01
You have an answer, the two equations for the characteristics, in my previous comment. Only need one step more for the general solution.
– Rafa Budría
Dec 5 '18 at 7:39