Euler's formula

Meaning

Proper Noun

• Formula which links complex exponentiation with trigonometric functions:
• Formula which calculates the normal curvature of an arbitrary direction in the tangent plane in terms of the principal curvatures $\backslash kappa\_1$ and $\backslash kappa\_2$ and the angle $\backslash theta$ which that direction makes with the first principal direction:

Related

Narrower meaning words

• Euler's identity

Origin

• Named after the 18th-century Swiss mathematician Leonhard Euler (1707–1783).