Medeah

package main

import "code.google.com/p/go-tour/pic"

func Pic(dx, dy int) [][]uint8 {
	slicePic := make([][]uint8, dy)
	for y := range slicePic {
		slicePic[y] = make([]uint8, dx)
		for x := range slicePic[y] {
			slicePic[y][x] = uint8(x ^ y)

Medeah

package main

import (
	"fmt"
	"math"
)

// square root function using Newton's method
func Sqrt(x float64) float64 {
	z := 1.0