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Answered: - Need a matlab script for project 2. I can't figure out how to


Need a matlab script for project 2. I can't figure out how to properly code this.


Sottile ? Spring 2016

 


 


 


 

CMPSC 200 Programming for Engineers with MATLAB

 

Programming Style Convention

 

Many different organizations maintain standards for code documentation ? the purpose of using

 

a style convention in this class is twofold: 1) to get you use to documenting your code to a given

 

standard, and 2) to facilitate grading a large number of programs.

 

Note: The easiest way to line up lines is to tab over with the tab key.

 

Comments at the top of your program

 

Pick your favorite format between Option 1 and 2 (both are acceptable):

 

Option 1:

 

%

 

%

 

%

 

%

 

%

 

%

 


 

Programmer:

 

Section:

 

Lab/Project:

 

Date:

 

Description:

 


 

Your Name

 

1 (enter your correct section number)

 

1 (enter the correct type and number)

 

September 3, 2014 (update with correct date)

 

A description of what the program does; limit this to just

 

the highlights ? only a few sentences

 


 

Option 2:

 

%{

 

Programmer:

 

Section:

 

Lab/Project:

 

Date:

 

Description:

 


 

Your Name

 

1 (enter your correct section number)

 

1 (enter the correct type and number)

 

September 3, 2014 (update with correct date)

 

A description of what the program does; limit this to just

 

the highlights - only a few sentences.

 


 

%}

 


 

Variables and Constants

 

Each variable or constant should be allocated one per line, so don?t allocate multiple variables on

 

one line of code. When you declare a constant or a variable, include a comment with the variable

 

or constant?s units and what it represents; include empty braces for variables that are

 

dimensionless. For example:

 

g = 9.81;

 

mu_static = 0.5;

 


 

% [m/s^2] gravitational acceleration at sea level

 

% [ ] coefficient of static friction

 


 

Constants should be allocated at the top of a program, underneath the comments at the top of the

 

program and the clc and clear statements. Listing them together forms a ?data dictionary? of

 

constants that can be easily seen by the programmer and anyone that later has to view your code.

 


 

Sottile ? Spring 2016

 


 


 


 

Subplots

 

So that it is clear what commands belong to each subplot, indent the commands with the tab key.

 

subplot(1,2,1)

 

plot(w,x)

 

title('My title #1')

 

subplot(1,2,2)

 

plot(y,z)

 

title('My title #2')

 


 

Function Files

 

It is important for functions to know what the function does, what are its inputs, and what are its

 

outputs. Please format your function files like this:

 

%

 

%

 

%

 

%

 


 

Programmer:

 

Section:

 

Lab/Project:

 

Date:

 


 

Your Name

 

1 (enter your correct section number)

 

1 (enter the correct type and number)

 

September 3, 2014 (update with correct date)

 


 

function [ output_args ] = myfunction( input_args )

 

%

 

Inputs:

 

1st input ? comment as described in ?Variables and Constants?

 

%

 

2nd output ? comment same as above

 

%

 

Outputs:

 

1st output ? comment same as above

 

%

 

2nd output ? comment same as above

 

%

 

Processing: A description of what the function does; limit this to just

 

%

 

the highlights ? only a few sentences

 


 

(some calculations are performed underneath the comments, documented as usual)

 

end

 


 

Include as many inputs and outputs as you have, each on a separate line. The listed variables

 

output_args and input_args are the MATLAB defaults when you open a new function.

 

Change these so that they are your variable names (as appropriate).

 

Selection Structures

 

To increase readability, format your selection structures with indents. You may include

 

parenthesis for your conditions if you feel they make your code more readable. For example:

 

if something

 

calculation(s)

 

elseif something_else

 

calculation(s)

 

else

 

calculation(s)

 

end

 


 


 


 

Sottile ? Spring 2016

 


 

Similar formatting is requested for switches, for example:

 

switch x

 

case 1

 

calculation(s)

 

case 2

 

calculation(s)

 

otherwise

 

calculation(s)

 

end

 


 

Repetition Structures

 

To increase readability, please format your repetition structures with indents. You may wish to

 

include parenthesis for your while loop conditions if you feel they make your code more

 

readable. An example for for loops is:

 

for i = matrix

 

statment(s)

 

end

 


 

Similarly, for a while loop:

 

while condition

 

statement(s)

 

end

 


 

Nesting

 

If you have multiple selection structure or repetition structures nested within each other, please

 

continue indenting. Comment next to each end stating at least what statement selection or

 

repetition structure, though you may be more detailed than that if you wish. For example:

 

for i = 1:10

 

while condition

 

switch x

 

case 1

 

if y < 0

 

statement(s)

 

else

 

statement(s)

 

end % end if

 

case 2

 

if y < 0

 

statement(s)

 

end % end if

 

end % switch

 

end % while loop

 

end % for loop

 


 


 


 

Sottile ? Spring 2016

 


 

Comments and Style

 

Comment your code, particularly if you do anything ?clever.? What may be obvious to you now

 

may not be obvious to a colleague, or even to yourself a week later. Explain calculations where

 

appropriate; this could include equation numbers if you use them from a given document. Don?t

 

comment just for the sake of commenting. Comments shouldn?t just decode MATLAB syntax

 

into English. You may assume the reader is at least minimally proficient in the language.

 

Please make sure that your code and comments are free from spelling and grammar errors ? pay

 

particular attention to spelling variable names correctly. MATLAB will assume you are trying to

 

allocate a different variable if you don?t type a variable exactly the same each time (spelling,

 

capitalization, etc.).

 


 

 

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