Let s be a string that contains a sequence of decimal numbers separated by commas

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

1. (30 points) Let s be a string that contains a sequence of decimal numbers separated by commas, e.g., s='1.23,2.4,3.123'. Write a Python code that gets s from a user using the input statement and prints the sum of the numbers in s. You may use a while statement to find the commas in the string, extract one number in each execution of the loop and sum the numbers after all of them are extracted. You may use the built-in string method, find.

2. (30 points) Consider the recursive function, f(x), such that f(0) = √π and f(x + 1) = (2x+1)f(x)/2, meaning that f(1) = √π/2, f(2) = 3√π/4, etc. Write a Python code that computes this function for a given value of x. The code is expected to get a nonnegative integer, x, from a user using the input statement. It is expected to have a recursive function to compute f(x) and print it. Using a regular function instead of a recursive function will cause loss of points. Assume that the user correctly enters a nonnegative integer so that the code does not have to check if it is properly entered.

 

Attachments:

Expert's Answer

651 Times Downloaded

Related Questions

. Introgramming & Unix Fall 2018, CRN 44882, Oakland University Homework Assignment 6 - Using Arrays and Functions in C

DescriptionIn this final assignment, the students will demonstrate their ability to apply two ma

. The standard path finding involves finding the (shortest) path from an origin to a destination, typically on a map. This is an

Path finding involves finding a path from A to B. Typically we want the path to have certain properties,such as being the shortest or to avoid going t

. Develop a program to emulate a purchase transaction at a retail store. This program will have two classes, a LineItem class and a Transaction class. The LineItem class will represent an individual

Develop a program to emulate a purchase transaction at a retail store. Thisprogram will have two classes, a LineItem class and a Transaction class. Th

. SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of Sea Ports. Here are the classes and their instance variables we wish to define:

1 Project 1 Introduction - the SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of

. Project 2 Introduction - the SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of Sea Ports. Here are the classes and their instance variables we wish to define:

1 Project 2 Introduction - the SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of