figure out return values & global var

go/makefile

@@ -1,2 +1,2 @@
 run:
-	go run hello.go
+	go run squiggle.go

go/notes.md

@@ -1,3 +1,4 @@
-- [ ] Hello world program
-- [ ] Look into randomness sources in go
+- [x] Hello world program
+- [x] Look into randomness sources in go
+  - rand/v2 api: <https://pkg.go.dev/math/rand/v2>
 - [ ] 

go/squiggle.go

@@ -3,8 +3,14 @@ package main
 import "fmt"
 import rand "math/rand/v2"
 
+var r = rand.New(rand.NewPCG(1, 2))
+
+func sample_unit_normal() float64 {
+	return 1.0
+}
+
 func main() {
-	r := rand.New(rand.NewPCG(1, 2))
 	fmt.Println("Hello world!")
 	fmt.Printf("%v\n", r.Float64())
+	fmt.Printf("%v\n", r.NormFloat64())
 }