Note that option 3 is the approach the 'rand' package took (see https://golang.org/pkg/math/rand/#Float32 https://golang.org/pkg/math/rand/#Float32 ). I guess

Note that option 3 is the approach the 'rand' package took (see https://golang.org/pkg/math/rand/#Float32 https://golang.org/pkg/math/rand/#Float32 ). I guess not so much definitely not the "Go way", just not the go way for the math library.