Write a function called mysum. This function should take a single argument, an integer value (N). If the integer is less than zero the function should return -999. Otherwise the function should return the sum given by Σ. i=0

Write a function called mysum. This function should take a single argument, an integer value (N). If the integer is less than zero the function should return -999. Otherwise the function should return the sum given by Σ. i=0

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Please answer in python. I have shown my attempt and it is wrong can you please correct it.

Write a function called mysum. This function should take a single argument, an integer value
(N). If the integer is less than zero the function should return -999. Otherwise the function
should return the sum given by
Ei.
i=0
import math
def mysum():
nstring
nvalue =
if nvalue < e:
I
input("Enter a variable:")
int(nstring)
%3D
%3D
print("-999")
else:
nsum = sum(range(1, nvalue+1))
print(nsum)

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