adjoint

[aj-oint]

ad·joint

[aj-oint]
noun Mathematics.
1.
a square matrix obtained from a given square matrix and having the property that its product with the given matrix is equal to the determinant of the given matrix times the identity matrix.
2.
Also called Hermitian conjugate, transposed conjugate. the matrix obtained from a given matrix by interchanging rows and columns and by replacing each element by its complex conjugate.

Origin:
ad- + joint
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Adjoint is always a great word to know.
So is difference. Does it mean:
the amount by which one quantity is greater or less than another
a quantity of which a given quantity is the cube
Collins
World English Dictionary
adjoint (ˈædˌdʒɔɪnt)
 
n
maths
 a.  another name for Hermitian conjugate
 b.  a generalization in category theory of this notion

Collins English Dictionary - Complete & Unabridged 10th Edition
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