Euler's formula

American  

noun

1. Mathematics.  the theorem that e ix = cos x + i sin x.

2. Mechanics.  a formula for determining the maximum load that can be applied to a given column without causing it to buckle.

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Etymology

Origin of Euler's formula

First recorded in 1945–50; named after L. Euler

Example Sentences

One of the designers, Zita Hsu, explains that they found inspiration in a mathematical concept known as Euler’s formula to create an abstract design.

From Economist

Other winners of the equation beauty contest included the Pythagorean identity, the identity between exponential and trigonometric functions derivable from Euler’s formula for complex analysis, and the Cauchy-Riemann equations.

From Scientific American

Athreya recalls that some of the student groups noticed the pattern that v – e + f = 2 for convex polyhedra, a nontrivial fact known as Euler's formula.

From Scientific American

Marco M jumped in at the end with a bit of Euler’s formula — something I’m sure we’ll explore in a future post.

From New York Times