Euler's formula

专有名词
中文释义

英文释义

专有名词
  1. A formula which links complex exponentiation with trigonometric functions
    — eⁱᶿ= cos θ+i sin θ
  2. A formula which calculates the normal curvature of an arbitrary direction in the tangent plane in terms of the principal curvatures κ₁ and κ₂ and the angle θ which that direction makes with the first principal direction
    — κₙ(θ)=κ₁ cos ²θ+κ₂ sin ²θ

词源

Named after Swiss mathematician Leonhard Euler (1707–1783).
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