There are a few different STS related studies that feature equations. Yeang discusses the development of the Austin-Cohen formula as an engineering/physics hybrid realized through the auspices and resources of the US Navy. MacKenzie, meanwhile, explores the realization of the Black-Scholes-Merton equation.
Yeang, C.-P. (2004). Scientific fact or engineering specification? The U.S. Navy's experiments on long-range wireless telegraphy circa 1910. Technology and Culture, 45(1), 1-29.
MacKenzie, D. (2003). Long-Term Capital Management and the sociology of arbitrage. Economy and Society, 32(3), 349-380.
MacKenzie, D. (2003). An equation and its worlds: Bricolage, exemplars, disunity and performativity in financial economics. Social Studies of Science, 33(6), 831-868.