r r r ~ N ( μ , σ 2 ) N(μ,σ^2) N(μ,σ2)
sigma=0.005
mu=1
r1=normal(size=1000)*sigma**2+mu
r2=normal(mu, scale=sigma, size=1000)
r r r ~ N ( μ , σ 2 ) N(μ,σ^2) N(μ,σ2)
sigma=0.005
mu=1
r1=normal(size=1000)*sigma**2+mu
r2=normal(mu, scale=sigma, size=1000)