func IsGoldbach(n uint32) bool { bound := mathutil.ISqrt(n/2) + 1 for i := uint32(1); i < bound; i++ { if _, ok := primes[n-2*i*i]; ok { return true } } return false }
func main() { minmax(100, 77) fmt.Println("ISqrt 65535 = ", mathutil.ISqrt(65535)) fmt.Println("Log2 70000 = ", mathutil.Log2Uint32(70000)) fmt.Println("BitLen 70 =", mathutil.BitLen(70)) fmt.Println("BitLen 700 =", mathutil.BitLen(700)) fmt.Println("BitLen 7000 =", mathutil.BitLen(7000)) fmt.Println("BitLen 70000 =", mathutil.BitLen(70000)) fmt.Println("PopCount 70000 = ", mathutil.PopCount(70000)) fmt.Println("PopCount 70001 = ", mathutil.PopCount(70001)) }