Explain the difference between a script file and a function file

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
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  1. Explain the difference between a script file and a function file
  2. i) Write a program using MATLAB that calculates the average,

 

  •  

å

 

=

 
  • 1 N

x                       x1

N i =1

and the standard deviation for a set of values (X),

 

 

 

 

 

S =                                                                                                

 

 

 

 

  1. Make a script file ‘date.m’ with which the user can call up de desired date. How to solve the problem
  • Ask the user (with the command >> input if he/she wants to know the date (1=yes, 2=no). - If the answer is ‘yes’ the date must be displayed (>> date).
  • If the answer is ‘no’ display on the screen that the user does not want to know the date (>> disp)

Write the m-file in MATLAB.                                                                               

 

 

  1. Given the function prototype, Function [out] = examfcn (in)

Write four (4) different calls to the function, each of which uses a distinctly different method to provide a value for the required parameter. Assume any variables that you need are available

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