Leonhard Euler (1707-1782) is widely considered the preeminent mathematician of the 18th Century. Euler worked closely with Bernoulli while they lived in St. Petersburg. He envisioned pressure as a point that could vary from point to point throughout a fluid. His differential equation for a fluid accelerated by gradients of pressure led him to create “Bernoulli’s Equation,” based upon Bernoulli’s work.

In his own work, Euler developed equations that included discoveries in infinitesimal calculus. These equations are essential to the field of fluid dynamics. Euler’s equations provided the mathematical framework for the study of fluid dynamics. His equations, including his equation for inviscid flows, are so important that they are used to this day.

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