Magic constant: Difference between revisions

</pre>

=={{header|Go}}==

{{trans|Wren}}

{{libheader|Go-rcu}}

<lang go>package main

import (

"fmt"

"math"

"rcu"

)

func magicConstant(n int) int {

return (n*n + 1) * n / 2

}

var ss = []string{

"\u2070", "\u00b9", "\u00b2", "\u00b3", "\u2074",

"\u2075", "\u2076", "\u2077", "\u2078", "\u2079",

}

func superscript(n int) string {

if n < 10 {

return ss[n]

}

if n < 20 {

return ss[1] + ss[n-10]

}

return ss[2] + ss[0]

}

func main() {

fmt.Println("First 20 magic constants:")

for n := 3; n <= 22; n++ {

fmt.Printf("%5d ", magicConstant(n))

if (n-2)%10 == 0 {

fmt.Println()

}

}

fmt.Println("\n1,000th magic constant:", rcu.Commatize(magicConstant(1002)))

fmt.Println("\nSmallest order magic square with a constant greater than:")

for i := 1; i <= 20; i++ {

goal := math.Pow(10, float64(i))

order := int(math.Cbrt(goal*2)) + 1

fmt.Printf("10%-2s : %9s\n", superscript(i), rcu.Commatize(order))

}

}</lang>

{{out}}

<pre>

Same as Wren example.