Calculate the sum of elements in an array using Python

October 6, 2022

Sum of element

Sum of Elements in an array using Python

Here, in this page we will discuss the program to find the sum of elements in an array using Python programming language. We are given with an array and need to print the sum of its element. In this page we will discuss different ways to find the sum.

Methods Discussed in this page are :

  • Method 1 : Using Iteration
  • Method 2 : Using recursion
  • Method 3 : Using inbuilt Function

Method 1 :

  • Declare a variable say Sum =0 to hold the value of sum
  • Run a loop for range( len(arr))
  • Set variable Sum = Sum + arr[i]
  • After complete iteration print value Sum

Method 1 : Python Code

Run 
arr = [10, 89, 9, 56, 4, 80, 8]
Sum = 0

for i in range(len(arr)):
   Sum = Sum + arr[i]
print (Sum)

Output

256

Find the Smallest and largest element in an array

Find Second Smallest Element in an Array

Reverse an Array

Sort first half in ascending order and second half in descending 

Sort the elements of an array

Method 2 :

  • Create a recursive function say getSum(arr, n)
  • Base Condition : if(n==0) then return 0
  • Otherwise, return arr[n-1] + getSum(arr, n-1)

Method 2 : Python Code

Run 
def getSum(arr, n):
   if n == 0:
     return 0
   return arr[n-1] + getSum(arr, n-1)
arr = [10, 20, 30, 40]
print(getSum(arr, len(arr)))

Output

100

Method 3:

  • Using in-built function sum(arr), we can get the sum of the elements of the array passed to it.

Method 3 : Python Code

Run
arr = [10, 20, 30, 40]
print(sum(arr))

Output

100

Prime Course Trailer

Related Banners

Get PrepInsta Prime & get Access to all 200+ courses offered by PrepInsta in One Subscription

Get Prime

6 comments on “Calculate the sum of elements in an array using Python”


  • Lahari

    import numpy as np
    n=int(input())
    a=np.array([input().split() for i in range(n)] ,int)
    print(sum(a))


  • Lahari

    import numpy as np
    n=int(input())
    s=0
    a=np.array([input().split() for i in range(n)] ,int)
    print(sum(a))


  • SUMAN

    a1 = list(map(int,input().split(“,”)))
    sum = 0
    for i in a1 :
    sum = sum + i;
    print(sum);


  • Ranjeet

    n = int(input(“Enter the size of the array. \n”))
    arr = []
    for i in range(n):
    element = int(input())
    arr.append(element)
    arr.sort()
    print(f”The array are: {arr} \n”)
    print(f”The sum of the total array are: {sum(arr)}”)


  • Arun

    from array import *
    a=array(“i”,[])
    b=int(input(“enter size :”))
    sum=0
    for x in range(b):
    c=int(input())
    a.append(c)
    sum=sum+c
    print(sum)


  • Abhishek

    n=int(input(“Enter how many number you want to add?”))
    arr=[]

    for i in range(n):
    x=int(input(“Enter numbers”))
    arr.append(x)

    print(arr)
    sum=0
    for j in range(len(arr)):
    sum=sum+arr[j]
    print(sum)