# Kotlin Program to Display Armstrong Numbers Between Intervals Using Function

#### In this program, you’ll learn to display all armstrong numbers between two given intervals, low and high, using a function in Kotlin.

To find all armstrong numbers between two integers, `checkArmstrong()`

function is created.

## Example: Armstrong Numbers Between Two Integers

```
fun main(args: Array<String>) {
val low = 999
val high = 99999
for (number in low + 1..high - 1) {
if (checkArmstrong(number))
print("$number ")
}
}
fun checkArmstrong(num: Int): Boolean {
var digits = 0
var result = 0
var originalNumber = num
// number of digits calculation
while (originalNumber != 0) {
originalNumber /= 10
++digits
}
originalNumber = num
// result contains sum of nth power of its digits
while (originalNumber != 0) {
val remainder = originalNumber % 10
result += Math.pow(remainder.toDouble(), digits.toDouble()).toInt()
originalNumber /= 10
}
if (result == num)
return true
return false
}
```

When you run the program, the output will be:

1634 8208 9474 54748 92727 93084

In the above program, we’ve created a function named `checkArmstrong()`

which takes a parameter `num` and returns a boolean value.

If the number is armstrong, it returns `true`

. If not, it returns `false`

.

Based on the return value, number is printed on the screen inside `main()`

function.

# Python Example for Beginners

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There are two sides to machine learning:

**Practical Machine Learning:**This is about querying databases, cleaning data, writing scripts to transform data and gluing algorithm and libraries together and writing custom code to squeeze reliable answers from data to satisfy difficult and ill defined questions. It’s the mess of reality.**Theoretical Machine Learning**: This is about math and abstraction and idealized scenarios and limits and beauty and informing what is possible. It is a whole lot neater and cleaner and removed from the mess of reality.

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