an expression obtained from a given matrix by taking the determinant of the difference between the matrix and an arbitrary variable times the identity matrix.
a scalar for which there exists a nonzero vector such that the scalar times the vector equals the value of the vector under a given linear transformation on a vector space. a root of the characteristic equation of a given matrix.
a vector for which there exists a scalar such that the value of the vector under a given transformation is equal to the scalar times the vector.
a measure of the effectiveness with which the combustion in a rocket engine produces high temperature and pressure, equal to the exhaust velocity divided by the thrust coefficient. the total of all velocities a space vehicle must develop to complete a given mission. an expression of the performance of a propellant or a propulsion system […]
- Characteristic x-ray
an x-ray that is emitted from an atom when an electron is displaced from an inner shell.