Goで配列に対してビットワイズに任意の関数を適用する関数 ref: http://qiita.com/Rompei/items/6b2425fca744977fd3f9

file0.go

package main

import "fmt"

func main() {
    v := []float64{1,1,1,1}
    fmt.Println(v+1)
}

file1.go

prog.go:7: invalid operation: v + 1 (mismatched types []float64 and int)

file2.go

func BroadcastFunc(v []float64, f func(float64, ...interface{}) float64, args ...interface{}){
    for i,_ := range v{
        v[i] = f(v[i], args...)
    }
}