How can I find the component of this 3D tensor in a 2D space?












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Good day Dear community,



I'm really new in this field, so I truly appreciate your help and advises. I have this math problem:



Consider the two mutually perpendicular unit vectors:



$$i_a=3/5 i_1-4/5 i_2$$



$$i_b=4/5 i_1+3/5 i_2$$



Also, I have this Tensor:
$$[A]=begin{bmatrix}-2&3&1\4&2&3\-2&1&0end{bmatrix}$$



I need to find the component of the tensor $A_{ab}$



Thanks ind advance for any help!










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  • $begingroup$
    Since you only mention two unit vectors this suggests your underlying space has two dimensions - but your tensor components have three dimensions. Which is correct ?
    $endgroup$
    – gandalf61
    Dec 6 '18 at 15:34










  • $begingroup$
    Yes, You're right. I'm going to modify the post. Thanks!
    $endgroup$
    – Leonardo H. Talero-Sarmiento
    Dec 6 '18 at 15:37
















0












$begingroup$


Good day Dear community,



I'm really new in this field, so I truly appreciate your help and advises. I have this math problem:



Consider the two mutually perpendicular unit vectors:



$$i_a=3/5 i_1-4/5 i_2$$



$$i_b=4/5 i_1+3/5 i_2$$



Also, I have this Tensor:
$$[A]=begin{bmatrix}-2&3&1\4&2&3\-2&1&0end{bmatrix}$$



I need to find the component of the tensor $A_{ab}$



Thanks ind advance for any help!










share|cite|improve this question











$endgroup$












  • $begingroup$
    Since you only mention two unit vectors this suggests your underlying space has two dimensions - but your tensor components have three dimensions. Which is correct ?
    $endgroup$
    – gandalf61
    Dec 6 '18 at 15:34










  • $begingroup$
    Yes, You're right. I'm going to modify the post. Thanks!
    $endgroup$
    – Leonardo H. Talero-Sarmiento
    Dec 6 '18 at 15:37














0












0








0


0



$begingroup$


Good day Dear community,



I'm really new in this field, so I truly appreciate your help and advises. I have this math problem:



Consider the two mutually perpendicular unit vectors:



$$i_a=3/5 i_1-4/5 i_2$$



$$i_b=4/5 i_1+3/5 i_2$$



Also, I have this Tensor:
$$[A]=begin{bmatrix}-2&3&1\4&2&3\-2&1&0end{bmatrix}$$



I need to find the component of the tensor $A_{ab}$



Thanks ind advance for any help!










share|cite|improve this question











$endgroup$




Good day Dear community,



I'm really new in this field, so I truly appreciate your help and advises. I have this math problem:



Consider the two mutually perpendicular unit vectors:



$$i_a=3/5 i_1-4/5 i_2$$



$$i_b=4/5 i_1+3/5 i_2$$



Also, I have this Tensor:
$$[A]=begin{bmatrix}-2&3&1\4&2&3\-2&1&0end{bmatrix}$$



I need to find the component of the tensor $A_{ab}$



Thanks ind advance for any help!







tensor-products tensors






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Dec 6 '18 at 15:40







Leonardo H. Talero-Sarmiento

















asked Dec 6 '18 at 14:19









Leonardo H. Talero-SarmientoLeonardo H. Talero-Sarmiento

13




13












  • $begingroup$
    Since you only mention two unit vectors this suggests your underlying space has two dimensions - but your tensor components have three dimensions. Which is correct ?
    $endgroup$
    – gandalf61
    Dec 6 '18 at 15:34










  • $begingroup$
    Yes, You're right. I'm going to modify the post. Thanks!
    $endgroup$
    – Leonardo H. Talero-Sarmiento
    Dec 6 '18 at 15:37


















  • $begingroup$
    Since you only mention two unit vectors this suggests your underlying space has two dimensions - but your tensor components have three dimensions. Which is correct ?
    $endgroup$
    – gandalf61
    Dec 6 '18 at 15:34










  • $begingroup$
    Yes, You're right. I'm going to modify the post. Thanks!
    $endgroup$
    – Leonardo H. Talero-Sarmiento
    Dec 6 '18 at 15:37
















$begingroup$
Since you only mention two unit vectors this suggests your underlying space has two dimensions - but your tensor components have three dimensions. Which is correct ?
$endgroup$
– gandalf61
Dec 6 '18 at 15:34




$begingroup$
Since you only mention two unit vectors this suggests your underlying space has two dimensions - but your tensor components have three dimensions. Which is correct ?
$endgroup$
– gandalf61
Dec 6 '18 at 15:34












$begingroup$
Yes, You're right. I'm going to modify the post. Thanks!
$endgroup$
– Leonardo H. Talero-Sarmiento
Dec 6 '18 at 15:37




$begingroup$
Yes, You're right. I'm going to modify the post. Thanks!
$endgroup$
– Leonardo H. Talero-Sarmiento
Dec 6 '18 at 15:37










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