`random-mtzig:f32vector-randn!`procedureReturns an SRFI-4

`f32`vector of random values from a normal (Gaussian) distribution, using Marsaglia and Tsang's Ziggurat algorithm to transform a uniform distribution into a normal one.

`random-mtzig:f32vector-randn!`procedureReturns an SRFI-4

`f32`vector of random values from a normal (Gaussian) distribution, using Marsaglia and Tsang's Ziggurat algorithm to transform a uniform distribution into a normal one.