As noted above, for small deformations, most elastic materials such as springs exhibit linear elasticity and can be described by a linear relation between the stress and strain. This relationship is known as Hooke's law. A geometry-dependent version of the idea was first formulated by Robert Hooke in 1675 as a Latin anagram, "ceiiinosssttuv". He published the answer in 1678: ""Ut tensio, sic vis"" meaning ""As the extension, so the force"", a linear relationship commonly referred to as Hooke's law. This law can be stated as a relationship between tensile force and corresponding extension displacement ,