continue defining simple go API

go/hello.go

@@ -1,7 +0,0 @@
-package main
-
-import "fmt"
-
-func main() {
-	fmt.Println("Hello world!")
-}

go/squiggle.go

@@ -1,12 +1,37 @@
 package main
 
 import "fmt"
+import "math"
 import rand "math/rand/v2"
 
 var r = rand.New(rand.NewPCG(1, 2))
 
+func sample_unit_uniform() float64 {
+	return r.Float64()
+}
+
 func sample_unit_normal() float64 {
-	return 1.0
+	return r.NormFloat64()
+}
+
+func sample_uniform(start float64, end float64) float64 {
+	return sample_unit_uniform()*(end-start) + start
+}
+
+func sample_normal(mean float64, sigma float64) float64 {
+	return mean + sample_unit_normal()*sigma
+}
+
+func sample_lognormal(logmean float64, logstd float64) float64 {
+	return (math.Exp(sample_normal(logmean, logstd)))
+}
+
+func sample_normal_from_90_ci(low float64, high float64) float64 {
+	var normal90 float64 = 1.6448536269514727
+	var mean float64 = (high + low) / 2.0
+	var std float64 = (high - low) / (2.0 * normal90)
+	return sample_normal(mean, std)
+
 }
 
 func main() {