wRT

Wrt is an acronym with multiple meanings depending on context. In written form, it is frequently used as an abbreviation for “with respect to” or “with reference to,” especially in mathematics, science, and related fields. In other contexts, wrt can refer to a brand or product name.

In mathematics and related disciplines, wrt denotes the variable or parameter with respect to which a function is differentiated or analyzed. It appears in expressions such as df/dx or ∂f/∂y, indicating differentiation with respect to x or y, and more generally in vector calculus and statistics when conditioning on a variable. It helps distinguish dependencies when a function depends on several variables.

In technology and networking, WRT is widely recognized as part of the Linksys WRT product line, notably the WRT54G series of wireless routers. The letters are commonly understood as an abbreviation for Wireless Router, though the exact origin was not formally documented by Linksys. The WRT devices became popular in communities that customize firmware, leading to projects such as DD-WRT, OpenWrt, and Tomato, which extend features, performance, and security beyond stock firmware.

Beyond mathematics and networking, WRT appears in various contexts as an acronym for organizations or phrases, but these uses are less standardized. When encountered, the intended meaning is typically clarified by context.