Formulas
- Knizhnik–Zamolodchikov equations
- Wave interference
- Wavelet
- Leeson's equation
- Leftover hash lemma
- Legendre moment
- Leibniz harmonic triangle
- Lenglart's inequality
- Logical connective
- Magnetic circuit
- Primitive part and content
- Principal component analysis
- Probability current
- Series and parallel circuits
- Tensor contraction