Symbol in context

$e^{-\tau(\lambda)}$

This entry links every published equation using this exact notation. Its meaning may change between equations.

Used in 1 equation

I(\lambda) = I_0(\lambda)\, e^{-\tau(\lambda)}, \qquad \tau(\lambda) = \int n(z)\,\sigma(\lambda, z)\, dz,

How Planetary Science and Exploration Actually Work · Equation 9

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

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