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(linear algebra) positive-semidefinite matrix
A positive-semidefinite matrix is one of the important concepts in linear algebra.
(linear algebra) triangular matrix
In linear algebra, triangular matrices play a very important role.
(linear algebra) skew-symmetric matrix
A skew-symmetric matrix has the characteristic that its transpose matrix is the inverse of the original matrix.
(linear algebra) transposed matrix
The calculation of this transposed matrix is a bit complicated.
(linear algebra) square matrix
This square matrix has the same number of rows and columns.
(linear algebra) diagonal matrix
A diagonal matrix is a matrix in which all elements outside the main diagonal are zero.
(linear algebra) lower triangular matrix
A lower triangular matrix is a matrix where all the elements below the main diagonal are zero.
fishfinder
My boat is equipped with the latest fishfinder.
(euphemistic) the world's oldest profession
She is conducting research on the world's oldest profession.
ichthyologist
My father is an ichthyologist and has a deep knowledge about marine life.
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