Use python you are contacted by Dr. Matt Matic who teaches mathematics at Whatsa

Question

Use python

you are contacted by Dr. Matt Matic who teaches mathematics at Whatsamatta U. He wants to be able consider the idea of summation.

Recall that a summation adds a sequence of numbers, and the result is the total. For example, if we were finding the summation of 5 starting at the value 1, we would find the total is 1+2+3+4+5=15.

Let's always assume that our starting value is 1.

He asks you to write a program that:

For example:

Please enter a positive number to sum: 0 Please enter a positive number to sum: -1 Please enter a positive number to sum: 6 sum of 1 is 1 sum of 2 is 3 sum of 3 is 6 sum of 4 is 10 sum of 5 is 15 sum of 6 is 21

Explanation / Answer

Do save your below code with .py extension.

# your code goes here

while(True):
    num = int(input('Please enter a positive num: '))
    if num <= 0:
        continue
    else:
        break
i = 0
res = 0
while(i<num):
  
   i = i + 1
   res = res + i
   print('Sum of ' + str(i) + ' is ' + str(res))

Input:

0
-1
6

Output:

Please enter a positive num: Please enter a positive num: Please enter a positive num: Sum of 1 is 1
Sum of 2 is 3
Sum of 3 is 6
Sum of 4 is 10
Sum of 5 is 15
Sum of 6 is 21

Link to the code:

http://ideone.com/j1wq8f

Hope it helps, do give your response.

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