null vector वाक्य
उदाहरण वाक्य
मोबाइल
- Where g ^ { \ mu \ nu } are the components of the metric tensor and l ^ \ mu and n ^ \ nu are the components of the principal null vectors:
- In Minkowski spacetime, the nonholonomically constructed null vectors \ { l ^ a \,, n ^ a \ } respectively match the outgoing and ingoing " null radial " rays.
- From the form of the general coordinate basis expression given above, it is apparent that the stress energy tensor has precisely the same isotropy group as the null vector field \ vec { k }.
- As long as nothing happens during transmission, "'r "'will remain in the kernel of "'H "'and the multiplication will yield the null vector.
- Systems whose four-momentum is a null vector ( for example a single photon or many photons moving in exactly the same direction ) have zero invariant mass, and are referred to as " massless ".
- In several cases " N " is an isotropic quadratic form so that " A " has at least one null vector, contrary to the separation of points required for the usual norm discussed in this article.
- Yet, since this space only contains the null vector and its only endomorphism is the identity, any function " b " from any set I ( even a nonempty one ) to this singleton space work as a present basis.
- Similarly, Hamming codes cannot detect or recover from an arbitrary three-bit error; Consider the diagram : if the bit in the green circle ( colored red ) were 1, the parity checking would return the null vector, indicating that there is no error in the codeword.
- These each may split into three cases according to whether is positive, zero or negative, corresponding ( in reversed order in some cases ) to the object as listed, a degenerate case of a single point, or no points ( where the nonzero solutions of exclude null vectors ).
- These rows are used to compute the "'syndrome vector "'at the receiving end and if the syndrome vector is the null vector ( all zeros ) then the received word is error-free; if non-zero then the value indicates which bit has been flipped.
- We do not expect to be able to find a solution if the predicted codimension, i . e . the number of " independent " constraints, exceeds " N " ( in the linear algebra case, there is always a " trivial ", null vector solution, which is therefore discounted ).
- The set of real scalar multiples of this null vector, called a " null line " through the origin, represents a " line of sight " from an observer at a particular place and time ( an arbitrary event we can identify with the origin of Minkowski spacetime ) to various distant objects, such as stars.
- More precisely, we consider expressions that's built of ( integer constants ) rational constants, the null vector constant, scalar variables, vector variables, addition and multiplication of scalar expressions, addition of vector expressions, multiplication of a scalar expression with a vector expression, inner product of two vector expressions, and cross product of two vector expressions.
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