func ExampleFullPrecision_diverging() {
// Example 5.c, p. 49.
betterRoot := func() iterate.BetterFunc {
return func(x float64) float64 {
return (8 - math.Pow(x, 5)) / 3
}
}
x, err := iterate.FullPrecision(betterRoot(), 0, 20)
if err != nil {
fmt.Println(err)
return
}
fmt.Printf("%.9f\n", x)
fmt.Println(x, "(full precision)")
// Output:
// Maximum iterations reached
}
func ExampleFullPrecision_converging() {
// Example 5.d, p.49.
betterRoot := func() iterate.BetterFunc {
return func(x float64) float64 {
return math.Pow(8-3*x, .2)
}
}
x, err := iterate.FullPrecision(betterRoot(), 0, 30)
if err != nil {
fmt.Println(err)
return
}
fmt.Printf("%.9f\n", x)
fmt.Println(x, "(full precision)")
// Output:
// 1.321785627
// 1.321785627117658 (full precision)
}
func ExampleFullPrecision() {
// Example 5.b, p. 48.
betterRoot := func() iterate.BetterFunc {
return func(x float64) float64 {
return (8 - math.Pow(x, 5)) / 17
}
}
x, err := iterate.FullPrecision(betterRoot(), 0, 20)
if err != nil {
fmt.Println(err)
return
}
fmt.Printf("%.9f\n", x)
fmt.Println(x, "(full precision)")
// Output:
// 0.469249878
// 0.4692498784547387 (full precision)
}