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split a vector into normal and tangential component

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Sasi umaiyal
Sasi umaiyal 2017-11-7
评论： David Sziroczak 2017-11-7
i have E field vectors(x,y,z) of two ports.i want to find out the tangential magnitude of the E field vectors. to calculate th tangential magnitude i need to split the normal and tangential components of the total efield vector. i have tried some formulas. but that did not work out.
can somebody just me the way to split the tangential and normal components of a vector in MATLAB?
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Torsten
Torsten 2017-11-7
So the points that make up the surface and the points where you are given the vector field E do not necessarily coincide ?
Best wishes
Torsten.
David Sziroczak
David Sziroczak 2017-11-7
Here are the steps you need to do:
1) You need to generate a unit vector which is normal to your surface.
2) Then generate the scalar product of that vector and your E field vector.
3) Multiply the unit vector with the scalar value: this will give you the normal to surface component.
4) To get the tangential, substract the normal component from the E vector.
Hope this helps,
Best regards,
David

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