# 1. Introduction

Summing elements in an array is a foundational computation in numerous applications, be it in finance for aggregating expenses, in analytics for collating data points, or in science for combining measurements. In this blog post, we will learn how to write a Go language to effectively determine the sum of elements housed within an array.

# 2. Program Overview

Our Go program is poised to:

1. Create an array of integers.

2. Implement the logic to find the sum of these numbers.

3. Display the total sum to the end user.

# 3. Code Program

``````// The declaration of the main package.
package main

// The fmt package is enlisted for I/O operations.
import "fmt"

// Function to calculate the sum of elements in an array.
func sumOfArray(arr []int) int {
sum := 0  // Initialize the sum at zero.
for _, value := range arr {
sum += value  // Aggregate each value in the array.
}
return sum  // Return the grand total.
}

// Main function - the heart of our program.
func main() {
array := []int{64, 34, 25, 12, 22, 11, 90}
fmt.Println("Array:", array)

// The mathematical magic - getting the sum.
totalSum := sumOfArray(array)
fmt.Println("Total Sum:", totalSum)
}
``````

### Output:

```Executing the code reveals:
Array: [64 34 25 12 22 11 90]
Total Sum: 258
```

# 4. Step By Step Explanation

1. Package and Import

• The program starts with the main package declaration.
• It imports the "fmt" package for input-output operations.

2. Summation Function: The sumOfArray function to calculate the sum of elements in an array.

3. Main Function: In the main function, we create an array of integers. Next, we will call sumOfArray function to calculate the sum of elements in an array and finally print the result to the end user.