ITP 168: Introduction to MATLAB

Homework 4 Due: 11:59pm Feb 21, 2020

Setup:

You will create a script that inputs a matrix, then sums the prime, odd or even numbers based on a user choice using loops.

Requirements:

• Create a script file named: numbercalc.m

• Using comments, put the following information at the top of the file:

  o Name o ITP168Fall2019 o Homework1 o USCEmail

  Include the clear and clc commands

  Part 1: User Input & Validation

  Ask the user to input a matrix of any size. Ensure that the user inputs a positive, integer matrix (HINT: the any() function could help here). If there is an incorrect input, ask them for a matrix again. Ask the user if they want to 1) sum the prime numbers in the matrix 2) sum the odd numbers or 3) sum the even numbers.

  Part 2: Summation of the matrix

  Once they choose, use a nested loop and conditionals to calculate the sum. You MUST use nested loops, vector math will not get credit.

  Part 3: Output the sum

  Output the sum to the user, and ask them if they would like to do another calculation. If they say yes, show the menu again and ask for another choice (hint: use a while loop). If they say N, then stop the program.

  Sample Output:

  This is a sample of what the program should show in the command window. If the user enters any information, it will be highlighted in RED:

  EXAMPLE 1

  Input a Matrix: [7 1 8; 4 5 8; 10 4 2] Please select from the following options:

1. 1) Sum Prime Numbers

2. 2) Sum Odd Numbers

3. 3) Sum Even Numbers

1

The sum is 15 Would you like to do another calculation? Please select from the following options:

1. 1) Sum Prime Numbers

2. 2) Sum Odd Numbers

3. 3) Sum Even Numbers

2

The sum is 13 Would you like to do another calculation? Please select from the following options:

1. 1) Sum Prime Numbers

2. 2) Sum Odd Numbers

3. 3) Sum Even Numbers

3

The sum is 36 Would you like to do another calculation? Goodbye!

Example 2

Input a Matrix: [7 1 8; 4 5 8; 10 4 2] Please select from the following options:

1. 1) Sum Prime Numbers

2. 2) Sum Odd Numbers

3. 3) Sum Even Numbers

7

Incorrect Input! Goodbye