strängen

Strängen is the definite form of the Swedish noun sträng, which translates to string, cord, thread, or line. In everyday Swedish, sträng refers to a flexible length of material used to tie, bind, or measure, and it can designate any string-like object.

In music, strängen designates the vibrating element of stringed instruments such as violins, guitars, or pianos. The pitch produced by a string depends on its tension, length, and linear density. For a string of length L, tension T, and linear density μ, the fundamental frequency is f1 = (1/2L) sqrt(T/μ), with higher harmonics at f_n = n f1. The material, construction, and playing technique influence tone and timbre.

In computing, sträng is the Swedish term for the string data type, a sequence of characters used to store text. Strings are a basic data type in nearly all programming languages and are manipulated via operations such as concatenation, slicing, and searching.

In physics, sträng is the Swedish word for string in string theory, a candidate framework for unifying fundamental forces by modeling elementary particles as tiny vibrating strings rather than point-like objects.