Gilbrat's Distribution
A Continuous Distribution in which the Logarithm of a variable 
has a Normal Distribution,
It is a special case of the Log Normal Distribution
with
and 
.See also Log Normal Distribution- Suspended Knot
- Suspension
- Suzanne Set
- Suzuki Group
- Swallowtail Catastrophe
- Swastika
- Swastika Curve
- Sweep Signal
- Swinnerton-Dyer Conjecture
- Swinnerton-Dyer Polynomial
- Swirl
- Sylow p-Subgroup
- Sylow Theorems
- Sylvester Cyclotomic Number
- Sylvester Graph
- Sylvester Matrix
- Sylvester's Determinant Identity
- Sylvester's Four-Point Problem
- Sylvester's Inertia Law
- Sylvester's Line Problem
- Sylvester's Sequence
- Sylvester's Signature
- Sylvester's Triangle Problem
- Symbolic Logic
- Symmedian Line