Introduction to Engineering MATLAB – 7 Script Files - 2 Agenda Script files continued

EXAMPLE Write a script file that determines the balance in a saving account at the end of every year for the first 10 years. Initial investment of $1,000 and interest rate of 6.5% compounded annually. Display the information in a table. For an initial investment of A, and interest rate of r, the balance B after n years is given by:

format bank yr = [1:10]; % Creating a vector of year numbers. balance = 1000*1.065.^yr; % Creating a vector of the balance. table_yr_blnc(:,1)=yr'; % Substituting the yr vector in the first column of the table matrix. table_yr_blnc(:,2)=balance'; % Substituting the balance vector in the second column of the table matrix. disp(' YEAR ACCOUNT') % Display titles. disp(' BALANCE ($)') % Display titles. disp(' ') % Display an empty line. disp(table_yr_blnc) % Display the table. SOLUTION Referenced in first MATLAB lecture

>> Lecture4Example4 YEAR ACCOUNT BALANCE ($) SOLUTION Executing the script file in the command window gives:

ASSIGNMENT 5: 1.Problem 32 page 61 in the textbook. 2.Problem 33 page 61 in the textbook. 3.Problem 4 page 161 in the textbook. For each problem write a script file and execute it in the command window. For each problem, the first two lines of the script file are: % Assignment 5, Problem (write the number of the problem) % Name: (first name, last name) Submit a printout of the script file, and a printout of the command window.