Right-Handed System: AxB=C or CxA=B?

  • Thread starter Thread starter phymatter
  • Start date Start date
  • Tags Tags
    System
AI Thread Summary
In a right-handed system where vectors A, B, and C are orthogonal and of unit length, the relationship A x B = C holds true, along with B x C = A and C x A = B. For a general case, A, B, and C maintain a right-handed orientation if the triple scalar product (A x B) . C is positive. This means that if A x B equals C, then the scalar product (A x B) . C results in a positive value, confirming the right-handed nature of the system. The discussion clarifies the conditions under which these vector relationships apply. Understanding these principles is essential for vector analysis in physics and mathematics.
phymatter
Messages
131
Reaction score
0
if we say that A , B and C form a right handed system , where all 3 are vectors then does it mean that A X B = C or C X A = B ??
pl. help !
 
Mathematics news on Phys.org
If A, B, and C are at right angles to one another, and have length 1, then that specific order, A, B, C, is a "right hand system" if and only if A x B= C, B x C= A, and C x A= B.
 
thanks HallsofIvy !
 
in general (not orthogonal, not unit length) you might say that A,B,C in that order is right-handed iff the triple scalar product (A x B) . C is positive.
 
g_edgar said:
in general (not orthogonal, not unit length) you might say that A,B,C in that order is right-handed iff the triple scalar product (A x B) . C is positive.

hi g_edgar!

how does this relate to the previous rule :"If A, B, and C are at right angles to one another, and have length 1, then that specific order, A, B, C, is a "right hand system" if and only if A x B= C, B x C= A, and C x A= B. "
 
If A x B= C then (A x B) . C= C . C which is positive.
 
Suppose ,instead of the usual x,y coordinate system with an I basis vector along the x -axis and a corresponding j basis vector along the y-axis we instead have a different pair of basis vectors ,call them e and f along their respective axes. I have seen that this is an important subject in maths My question is what physical applications does such a model apply to? I am asking here because I have devoted quite a lot of time in the past to understanding convectors and the dual...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
Back
Top