Function randomNormal

randomNormal(mu?, sigma?): (() => number)
Returns a function for generating random numbers with a normal (Gaussian) distribution. The expected value of the generated numbers is mu, with the given standard deviation sigma. If mu is not specified, it defaults to 0; if sigma is not specified, it defaults to 1.
Parameters
- Optional mu: number
  Expected value, defaults to 0.
- Optional sigma: number
  Standard deviation, defaults to 1.
Returns (() => number)
- - (): number
  - Returns a function for generating random numbers with a normal (Gaussian) distribution. The expected value of the generated numbers is mu, with the given standard deviation sigma. If mu is not specified, it defaults to 0; if sigma is not specified, it defaults to 1.
    
    Returns number