set the random seed in julia generator of random numbers

In Julia 0.7/1.0, you can use Random.seed!(1234); https://docs.julialang.org/en/v1/stdlib/Random/index.html#Generators-(creation-and-seeding)-1

Updated answer, for Julia 0.7 onwards.

import Random
Random.seed!(1234)
dim = 5
A = randn(dim,dim)
H = (A + A')/sqrt(2)

Previous answer, for Julia 0.6 and earlier.

You are looking for the srand function, e.g.

srand(1234)
dim = 5
A = randn(dim,dim)
H = (A + A')/sqrt(2)

Will always produce the same results.

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