Fourier Transform--Exponential Function
The Fourier Transform of 
is given by
 |  |  | |
|  | ||
|  | (1) |
Now let
so 
, then | |  | |
 |  | ||
|  | (2) |
which, from the Damped Exponential Cosine Integral, gives
 | (3) |
- Legendre's Chi-Function
- Legendre's Constant
- Legendre Series
- Legendre's Factorization Method
- Legendre's Formula
- Legendre's Quadratic Reciprocity Law
- Legendre Sum
- Legendre Symbol
- Legendre Transformation
- Lehmer Method
- Lehmer Number
- Lehmer-Schur Method
- Lehmer's Constant
- Lehmer's Formula
- Lehmer's Phenomenon
- Lehmer's Problem
- Lehmer's Theorem
- Lehmus' Theorem
- Leibniz Criterion
- Leibniz Harmonic Triangle
- Leibniz Identity
- Leibniz Integral Rule
- Leibniz Series
- Lemarié's Wavelet
- Lemma