# Ei

**EiB**- Abbreviation of exbibyte, equal to two to the power of sixty bytes.
**Eiffel, Gustave**- Structural Engineer and designer of the Eiffel Tower.
**Eigenvalue**- Possible values for a parameter of an equation for which the solutions will be compatible with the boundary conditions.
**Eigenvalue Problem**- The mathematical formulation and solution of the characteristic equation is called the Eigenvalue problem.
**Eigenvector of a Matrix**- An eigenvector of a square matrix A is a nonzero vector x such that Ax = cx holds for some scalar c.
**Einstein, Albert**- We may of heard of his Theory of Relativity and his Electromagnetic Theory of Light; but few of us will ever understand them.
**Einstein Field Equation**- The cornerstone of Einstein′s general theory of relativity.
**Einsteinium**- An artificial radioactive element found in the debris of an H bomb.
**Einstein′s Formula**- One of the most famous formula, this relates mass lost (m) in a nuclear reaction to energy (E) production, where c = the speed of light.