Frightening Stokes Theorem Computation












2












$begingroup$


I came across a rather frightening problem in my problem set and I am confused about it.



I need to compute the flux of a field $vec F = langle y, x^2, z(x^2-y^3)^7 cos(e^{xyz}) rangle$ through the upward-pointing surface $z= sqrt {1 - frac {x^2} 9 - frac {y^2} 4} $.



I'm told it would be wise to use Stokes's Theorem and I'm also told to figure out the boundary to get a head start. I attempted to compute this integral with brute force, but it seems to be unintegrable that way.



How should I approach this problem?










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$endgroup$












  • $begingroup$
    The boundary is not difficult to find, it's an ellipse of semi axis, 3 and 2. But the field is not the curl of anything. By other side, I don't see the problem easier using the divergence theorem.
    $endgroup$
    – Rafa Budría
    Nov 30 '18 at 13:18










  • $begingroup$
    Are you sure it is not the flux of $curl vec {F} = (y,x^2,f(x,y,z))$ that you want to compute?
    $endgroup$
    – Kuifje
    Nov 30 '18 at 13:45


















2












$begingroup$


I came across a rather frightening problem in my problem set and I am confused about it.



I need to compute the flux of a field $vec F = langle y, x^2, z(x^2-y^3)^7 cos(e^{xyz}) rangle$ through the upward-pointing surface $z= sqrt {1 - frac {x^2} 9 - frac {y^2} 4} $.



I'm told it would be wise to use Stokes's Theorem and I'm also told to figure out the boundary to get a head start. I attempted to compute this integral with brute force, but it seems to be unintegrable that way.



How should I approach this problem?










share|cite|improve this question











$endgroup$












  • $begingroup$
    The boundary is not difficult to find, it's an ellipse of semi axis, 3 and 2. But the field is not the curl of anything. By other side, I don't see the problem easier using the divergence theorem.
    $endgroup$
    – Rafa Budría
    Nov 30 '18 at 13:18










  • $begingroup$
    Are you sure it is not the flux of $curl vec {F} = (y,x^2,f(x,y,z))$ that you want to compute?
    $endgroup$
    – Kuifje
    Nov 30 '18 at 13:45
















2












2








2


1



$begingroup$


I came across a rather frightening problem in my problem set and I am confused about it.



I need to compute the flux of a field $vec F = langle y, x^2, z(x^2-y^3)^7 cos(e^{xyz}) rangle$ through the upward-pointing surface $z= sqrt {1 - frac {x^2} 9 - frac {y^2} 4} $.



I'm told it would be wise to use Stokes's Theorem and I'm also told to figure out the boundary to get a head start. I attempted to compute this integral with brute force, but it seems to be unintegrable that way.



How should I approach this problem?










share|cite|improve this question











$endgroup$




I came across a rather frightening problem in my problem set and I am confused about it.



I need to compute the flux of a field $vec F = langle y, x^2, z(x^2-y^3)^7 cos(e^{xyz}) rangle$ through the upward-pointing surface $z= sqrt {1 - frac {x^2} 9 - frac {y^2} 4} $.



I'm told it would be wise to use Stokes's Theorem and I'm also told to figure out the boundary to get a head start. I attempted to compute this integral with brute force, but it seems to be unintegrable that way.



How should I approach this problem?







calculus integration multivariable-calculus vector-fields stokes-theorem






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Nov 30 '18 at 4:09









Mattos

2,73921321




2,73921321










asked Nov 30 '18 at 4:02









Jackson JoffeJackson Joffe

575




575












  • $begingroup$
    The boundary is not difficult to find, it's an ellipse of semi axis, 3 and 2. But the field is not the curl of anything. By other side, I don't see the problem easier using the divergence theorem.
    $endgroup$
    – Rafa Budría
    Nov 30 '18 at 13:18










  • $begingroup$
    Are you sure it is not the flux of $curl vec {F} = (y,x^2,f(x,y,z))$ that you want to compute?
    $endgroup$
    – Kuifje
    Nov 30 '18 at 13:45




















  • $begingroup$
    The boundary is not difficult to find, it's an ellipse of semi axis, 3 and 2. But the field is not the curl of anything. By other side, I don't see the problem easier using the divergence theorem.
    $endgroup$
    – Rafa Budría
    Nov 30 '18 at 13:18










  • $begingroup$
    Are you sure it is not the flux of $curl vec {F} = (y,x^2,f(x,y,z))$ that you want to compute?
    $endgroup$
    – Kuifje
    Nov 30 '18 at 13:45


















$begingroup$
The boundary is not difficult to find, it's an ellipse of semi axis, 3 and 2. But the field is not the curl of anything. By other side, I don't see the problem easier using the divergence theorem.
$endgroup$
– Rafa Budría
Nov 30 '18 at 13:18




$begingroup$
The boundary is not difficult to find, it's an ellipse of semi axis, 3 and 2. But the field is not the curl of anything. By other side, I don't see the problem easier using the divergence theorem.
$endgroup$
– Rafa Budría
Nov 30 '18 at 13:18












$begingroup$
Are you sure it is not the flux of $curl vec {F} = (y,x^2,f(x,y,z))$ that you want to compute?
$endgroup$
– Kuifje
Nov 30 '18 at 13:45






$begingroup$
Are you sure it is not the flux of $curl vec {F} = (y,x^2,f(x,y,z))$ that you want to compute?
$endgroup$
– Kuifje
Nov 30 '18 at 13:45












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