A Tour of go

#41.go

package main

import (
    "code.google.com/p/go-tour/wc"
    "strings"
)

func WordCount(s string) map[string]int {
    wc := make(map[string]int)
    for _, ss := range strings.Fields(s) {
        wc[ss]++
    }
    return wc
}

func main() {
    wc.Test(WordCount)
}

#44.go

package main

import "fmt"

// fibonacci is a function that returns
// a function that returns an int.
func fibonacci() func() int {
    fi, fj := 0, 1
    return func() int {
        fi, fj = fj, fi+fj
        return fj
    }
}

func main() {
    f := fibonacci()
    for i := 0; i < 10; i++ {
        fmt.Println(f())
    }
}

#48.go

package main

import (
    "fmt"
    )


func Cbrt(x complex128) complex128 {
    z := complex128(1)
    
    for i:=0; i<100000; i++{
        z = z-(z*z*z-x)/(3*z*z)
    }
    return z
}

func main() {
    fmt.Println(Cbrt(2))
}