Embedded Files
Hi Class!
Welcome to ECE105 Class! In this class:
You will learn to use MATLAB to solve Math & Engineering problems.
Some of you already had my ECE103 class, you are going to find out the first 4 assignments are reviews; however, I add additional assignments to give you additional practice. After that, each week we are going to apply MATLAB to different applications, there are total of 10 applications.
The most important thing to do the first week is to meet your classmates & form a team of 2.
For Hybrid class: on the first day of class, I will make time for you to chat with each others & form a team of 2, do seating assignments in the class room. It is important to reach out to your classmate, because I treat each assignment like a test, as an instructor, I will not help you to find the solution for the test; however, you can reach out to your classmate, chat & compare notes, just no copy & paste.
(Note: some of you like to go SOLO, it is OK. However, when you go SOLO, you are really on your own; if you need help, I am going to ask you to reach out to your classmate).
Assignments are due every Friday by 11:59pm. Each assignment will be posted at least 1 weeks in advance. So, your strategy is to stay on top of schedule, never fall behind. If you are ahead of schedule, you have plenty of time to work out the problems, you are going "Down Hill"; if you are behind schedule, you don't have time and therefore rushing, you are going "Uphill". Believe it or not, going "Down Hill" is much easier than going "Uphill"!
I have dedicated this website for our class. It has all detailed instructions and rubric for each assignment for this class including all the resources that you need to complete your tasks.
Enjoy the class!
Coach
Course Format / days / times & location:
Course Format / days / times & location:
Class #29313 (Hybrid) : Wed 1:00pm - 1:50pm @ T1-110
Office Hours:
Office Hours:
@ the end of each class
@ the end of each class
Phone: (use email)
Phone: (use email)
Email: ui.luu@gccaz.edu
Email: ui.luu@gccaz.edu
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Common Q & A
Common Q & A
Q1. Will you have exams or tests in this class?
Q1. Will you have exams or tests in this class?
A1. Every assignment and project is treated as a test. Assignments are due every Fridays 11:59pm, they are posted at least 1 weeks in advance, so you have plenty of time to work out any problems, if you run into problems, compare notes with your teammates, just NO copy & paste.
A1. Every assignment and project is treated as a test. Assignments are due every Fridays 11:59pm, they are posted at least 1 weeks in advance, so you have plenty of time to work out any problems, if you run into problems, compare notes with your teammates, just NO copy & paste.
There is NO final exam, just weekly assignments
There is NO final exam, just weekly assignments
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(for In-Person Class only)
(for In-Person Class only)
If you don't feel well:
If you don't feel well:
1. Email me (before class) that you don't feel well (you don't need to provide me any medical info), stay home and do assignments Online
1. Email me (before class) that you don't feel well (you don't need to provide me any medical info), stay home and do assignments Online
2. Get well. There is no rush, only go back to class when you are well.
2. Get well. There is no rush, only go back to class when you are well.
Note: strict Online Assignments policy:
Note: strict Online Assignments policy:
If students don't submit assignments in 14 days, they will be dropped from the course
If students don't submit assignments in 14 days, they will be dropped from the course
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Assignment #0: Syllabus Quiz (using Canvas)
Assignment #0: Syllabus Quiz (using Canvas)
Post 1/21, due on the first day of class (1/21)
(Note: You must complete the Syllabus Quiz on the first day of class or you be dropped from the class as "NO SHOW"
I will dedicated 15 minutes on the first day of class for you to complete this assignment.
I will dedicated 15 minutes on the first day of class for you to complete this assignment.
Go to Canvas / Click on Quizzes / Assignment #1: Syllabus Quiz
Go to Canvas / Click on Quizzes / Assignment #1: Syllabus Quiz
(It is SO SIMPLE, just DO IT!)
(It is SO SIMPLE, just DO IT!)
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Murphy's law:
Email never has a time delay until you submit it on Friday evening!
Then there will be a time delay, I may not receive it until Saturday morning and your assignment will be counted as late!
Solution:
option a: provide the screenshot of when the assignment was sent, I will credit your assignment as "On time".
option b: submit on Thursday evening!
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Install MATLAB
Maricopa Community College District has acquired a Campus-Wide License to MATLAB, Simulink, and over 100 additional toolboxes. Students and faculty are covered by the Campus-Wide License and can install software on their home or laptop computers.
New MCCCD portal URL: https://www.mathworks.com/academia/tah-portal/maricopa-community-college-system-31495938.html
Access instructions:
1. Go to Maricopa Community College System’s MATLAB Portal to download the software.
§ If you have MATLAB installed on your Maricopa owned devices, no installation changes are needed.
§ Existing Mathworks accounts will be transitioned from GCC's instance to MCCCDs instance before the GCC MATLAB account is retired.
2. Click “Sign in to get started” under the Get MATLAB and Simulink section.
3. If you have not done so already, you will be asked to create a MathWorks account. Once registered, you will be associated to our MATLAB license and will be able to:
§ Download and activate software on your personal computer
§ Start using MATLAB Online from a web browser
For additional training, please view free online courses that can also be found on Maricopa Community College System’s MATLAB Portal under “Learn to Use MATLAB and Simulink.”
If you have trouble installing MATLAB, go to the MATLAB Portal and click “Need Installation Help” to get support.
PLEASE NOTE:
For the other existing MATLAB portals within Maricopa Community Colleges (Mesa Community College, Chandler-Gilbert, Paradise Valley, and Glendale Community College): These portals will no longer be available by the end of the calendar year. There are notices on these portals referring existing users to Maricopa Community College’s portal listed above. Moving forward, all users should transition to using the portal above to access MATLAB after the end of the current Fall 2023 semester.
Once installed, to access MATLAB Online, use web browser: https://matlab.mathworks.com/
Table of Content
Table of Content
(see links to assignments below)
Week #1 (8/28) Assignment #1 / Checking MATLAB: post 1/21, due in class
Week #1 (8/28) Assignment #1 / Checking MATLAB: post 1/21, due in class
Week #2(9/4) Assignment #2 / Solving Quadratic Equations: post 1/28, due 2/6
Week #2(9/4) Assignment #2 / Solving Quadratic Equations: post 1/28, due 2/6
Week #3(9/11) Assignment #3 / Solving 3 Equations 3 Unknowns: post 2/4, due 2/13
Week #3(9/11) Assignment #3 / Solving 3 Equations 3 Unknowns: post 2/4, due 2/13
Week #4(9/18) Assignment #4 / 4 Subplots: post 2/11, due 2/20
Week #4(9/18) Assignment #4 / 4 Subplots: post 2/11, due 2/20
Week #5(9/25) Assignment #5 / Complex number & Application #1: Circuit Analysis (post 2/18, due 2/27)
Week #5(9/25) Assignment #5 / Complex number & Application #1: Circuit Analysis (post 2/18, due 2/27)
Week #6(10/2) Assignment #6 / Application #2: Simple Missile Guidance (post 2/25, due3/6)
Week #6(10/2) Assignment #6 / Application #2: Simple Missile Guidance (post 2/25, due3/6)
Week #7(10/9) Assignment #7 / Application #3: Create User-defined Function (post 3/4, due 3/13)
Week #7(10/9) Assignment #7 / Application #3: Create User-defined Function (post 3/4, due 3/13)
Week #8 (10/16) Assignment #8 / Application #4:Using If statement (post 3/11, due 3/20)
Week #8 (10/16) Assignment #8 / Application #4:Using If statement (post 3/11, due 3/20)
*** Spring Break (3/16 - 3/22): No Class ***
Week #9(10/23) Assignment #9 / Application #5: Logical Operations (post 3/25, due 4/3)
Week #9(10/23) Assignment #9 / Application #5: Logical Operations (post 3/25, due 4/3)
week #10(10/30) Assignment #10 / Tracking Speed of a Falling Bowling Ball @ Eiffel Tower (post 4/1, due 4/10)
week #10(10/30) Assignment #10 / Tracking Speed of a Falling Bowling Ball @ Eiffel Tower (post 4/1, due 4/10)
Week #11(11/6) Assignment #11 / Satellite Orbit (post 4/8, due 4/17)
Week #11(11/6) Assignment #11 / Satellite Orbit (post 4/8, due 4/17)
Week #12(11/13) Assignment #12 / Bullet Speed (post 4/15, due 4/24)
Week #12(11/13) Assignment #12 / Bullet Speed (post 4/15, due 4/24)
Week #13(11/20) Assignment #13 / Projectile Problem (post 4/22, due 5/1)
Week #13(11/20) Assignment #13 / Projectile Problem (post 4/22, due 5/1)
Week #14(12/4) Experiment (demo only, report not required): Using AI to solve Satellite Orbit Problem for Assignment #11
Week #14(12/4) Experiment (demo only, report not required): Using AI to solve Satellite Orbit Problem for Assignment #11
Last Assignment: One Thing (post 4/29, due 5/8)
Last Assignment: One Thing (post 4/29, due 5/8)
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Post 1/21, due in class
Post 1/21, due in class
late 1/31 12:01am -2/1 11:59pm
late 1/31 12:01am -2/1 11:59pm
Game Over : after 2/1 11:59pm: 0 point
Game Over : after 2/1 11:59pm: 0 point
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Resources for Assignment #2
Resources for Assignment #2
Create New Script
Create New Script
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Solve Quadratic Equation using MATLAB script
Solve Quadratic Equation using MATLAB script
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post 1/28, due 2/6
post 1/28, due 2/6
Solution / Assignment #2(general/link)
Solution / Assignment #2(general/link)
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(Optional) Additional Practice #1 ( No report required)
Create an M-File(Script) to calculate the Acceleration of a Spacecraft Voyager 1
Run your script, compare notes with "Spoiler/Solution"
Physics:
Force: F = ma (m: mass, a:acceleration)
Work: W = F * d (F: force, d= distance)
Power = W/t (W: work, t: time)
Power = F * d/t = F*v = m*a*v (v: velocity)
Given:
mass = 721.9 kg
Power = 335 Watts
Velocity = 16,650 m/s
Calculate:
Acceleration (unit in m/s^2)
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Resources for Assignment #3
Resources for Assignment #3
post 2/4, due 2/13
post 2/4, due 2/13
Solution / Assignment #3 (posted after due date)
Solution / Assignment #3 (posted after due date)
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Plots
Plots
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(Note: This exercise is for practice only, NO report required)
(Note: This exercise is for practice only, NO report required)
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(Note: This exercise is for practice only, NO report required)
(Note: This exercise is for practice only, NO report required)
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(Note: This exercise is for practice only, NO report required)
(Note: This exercise is for practice only, NO report required)
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post 2/11, due 2/20
post 2/11, due 2/20
Solutions / Assignment #4 (post after due date)
Solutions / Assignment #4 (post after due date)
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Common Q &A
Common Q &A
Q1. x is an array. MATLAB refuses to work when I program: y = x^2. Help!
Q1. x is an array. MATLAB refuses to work when I program: y = x^2. Help!
A1. Because x is an array, MATLAB refuses to work unless you put a "." in front of "^"
A1. Because x is an array, MATLAB refuses to work unless you put a "." in front of "^"
y=x.^2
y=x.^2
(Replay the Video, watch & listen closely)
(Replay the Video, watch & listen closely)
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Complex numbers basic operations
Complex numbers basic operations
Practice Complex number: basic operations (link to script)
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Application: Circuit Analysis
Application: Circuit Analysis
Assignment #5 / Circuit Analysis(link)
Assignment #5 / Circuit Analysis(link)
(post 2/18, due 2/27)
(post 2/18, due 2/27)
Solutions / Assignment #5 (common)
Solutions / Assignment #5 (common)
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Application: Simple Missile Guidance
Application: Simple Missile Guidance
Solutions / Missile Guidance using MATLAB (text)
Assignment #6 / Simple Missile Guidance(link)
Assignment #6 / Simple Missile Guidance(link)
(post 2/25, due 3/6)
(post 2/25, due 3/6)
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Application #3: Create User-defined Function
Application #3: Create User-defined Function
% function: poly(x)
function output = poly(x)
disp('x=')
disp(x)
output = 3*x^3 + 5*x^2 - 2*x + 1;
end
% using function: poly(x)
clear;
clc;
a= 4;
poly(a)
% using function: poly(x) with multiple inputs
clear;
clc;
for a= [1,2,3,4]
poly(a)
end
Assignment #7 / Application #3: Using User-defined Function launch_angle (link)
Assignment #7 / Application #3: Using User-defined Function launch_angle (link)
(post 3/4, due 3/13)
(post 3/4, due 3/13)
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Using if statement to make MATLAB "smart"
Using if statement to make MATLAB "smart"
% if_statement_example_01
clear
clc
disp('Example 01: using if statement')
disp('Calculate q= a/b')
a= 4
b= 0
if(b~=0) % ~= means NOT equal
q=a/b
end%note: if... end always goes in pair
if(b==0) % note: to compare, must use 2 equal sign"=="
disp('Hey! I do NOT like divide by 0, use other non-zero number')
end
% if_statement_example_02_tennis
clear
clc
disp('Tennis Strategy:')
for zone = [1,2,3,4]
disp('zone=')
disp(zone)
if(zone==1)
disp('Approach backhand slice down the line, ready for volley')
end
if(zone==2)
disp('Approach forehand slice down the line, ready for volley')
end
if(zone==3)
disp('Backhand topspin')
end
if(zone==4)
disp('Forehand topspin')
end
end % for loop
Assignment #8 / Application #4:Using If statement (link)
Assignment #8 / Application #4:Using If statement (link)
(post 3/11, due 3/20)
(post 3/11, due 3/20)
Solution / Assignment #8(link)
Solution / Assignment #8(link)
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Week #9 / Experiment with Logical Operations
Week #9 / Experiment with Logical Operations
% logic_not.m
% experiment: logic NOT (inverter)
clc
for a=[0,1]
disp('if input a=')
disp(a)
disp('The output of NOT logic is:')
y=~a % ~ means NOT
end
% logic_and.m
% experiment: logic and
clc
for a=[0,1]
for b=[0,1]
disp('if input a=')
disp(a)
disp('if input b=')
disp(b)
disp('The output of AND logic is:')
y= a & b
end
end
% logic_or.m
% experiment: logic and
clc
for a=[0,1]
for b=[0,1]
disp('if input a=')
disp(a)
disp('if input b=')
disp(b)
disp('The output of AND logic is:')
y= a | b % | means or
end
end
% logic_xor.m
% experiment: logic xor (exclusive or)
clc
for a=[0,1]
for b=[0,1]
disp('if input a=')
disp(a)
disp('if input b=')
disp(b)
disp('The output of AND logic is:')
y= xor(a,b) % xor means exclusive or
end
end
Assignment #9 / Application #5: Logical Operations /Dating Game(link)
Assignment #9 / Application #5: Logical Operations /Dating Game(link)
(post 3/25, due 4/3)
(post 3/25, due 4/3)
% logic_dating_game.m
% experiment with logical operations
clc
disp('inputs:')
susan = 0
lisa = 1
ticket = 1
disp('outputs')
date=xor(susan,lisa)
dinner = date
concert = ticket & date
movie = ~date
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Assignment #10 / Tracking Speed of a Falling Bowling Ball @ Eiffel Tower(link)
Assignment #10 / Tracking Speed of a Falling Bowling Ball @ Eiffel Tower(link)
(post 4/1, due 4/10)
(post 4/1, due 4/10)
Solutions / Assignment #10 (posted after due date)
Given:
Eiffel Tower: height = 300 m
acceleration due to gravity: g= 9.806 m/(s^2)
At the top of Eiffel Tower, we release a bowling ball.
(1) Find time it takes to hit the ground: tHit = ?
(2) Calculate the speed of Bowling Ball in (m/s) and (mph) with the following time interval 0.1*tHit
range (0 : 0.1*tHit : tHit)
(3) Top graph: Speed of Bowling Ball in (m/s)
(4) Bottom graph: Speed of Bowling Ball in (mph)
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Physics:
h = 0.5 * g * (tHit ^2)
tHit = sqrt(2 * h / g)
Speed: v= g*t (m/s)
v_mph = v * 2.23694 (mph) (Note: 1 m/s = 2.23694 (mph)
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Satellite Orbit
Satellite Orbit
low Earth orbit (LEO), medium Earth orbit (MEO), or geostationary orbit (GEO).
Low Earth Orbit (LEO):
Satellites in LEO, like those used for communications or Earth observation, travel at high speeds and complete an orbit in about 90 minutes.
Medium Earth Orbit (MEO):
Satellites in MEO, such as those used for GPS navigation, have a longer orbital period than LEO satellites.
Geostationary Orbit (GEO):
Satellites in GEO, like those used for weather satellites or television broadcasting, appear to stay in the same position relative to Earth because they orbit at the same speed as the Earth's rotation.
Assignment #11 / Satellite Orbit(link)
Assignment #11 / Satellite Orbit(link)
(post 4/8, due 4/17)
(post 4/8, due 4/17)
Solutions / Assignment #11
% sat_orb_speed_vs_altitude.m
clc
h_km = 40000 % unit : km
h = h_km *1000 % unit : m
Re= 6370000 % unit: m
GMe=3.99*10^14 % unit: m^3/s^2
v=sqrt(GMe/(h+Re))
v_km_per_s = v/1000 % unit: km
v_mph = v * 2.23694 % unit: mph
v_mach = v_mph/768 % unit: Mach, 1 Mach = 768 mph
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Assignment #12 / Measuring Speed of Bullet (link)
Assignment #12 / Measuring Speed of Bullet (link)
(post 4/15, due 4/24)
(post 4/15, due 4/24)
Solutions / Assignment #12
% bullet_speed_vs_height
clc
disp('4/16/2024 ECE105 / Usane Bolt')
% given:
g=9.806
m1=0.01 % unit: kg
m2=150 % unit: kg
h1 = 1 % unit: m
for h2=[0.7, 0.6, 0.5,0.4]
disp('----------------')
disp('h2=')
disp(h2)
v1=sqrt((2/m1)*(m1+m2)*g*(h1-h2)); % unit: m/s
v1_mph = v1*2.23694 % unit: mph
v1_mach = v1_mph / 768 % unit: mach #
end
Assignment #13 / Projectile (link)
Assignment #13 / Projectile (link)
post 4/22, due 5/1
post 4/22, due 5/1
Solutions / Assignment #13
Review Physics & Math for Projectile
% SPOILER: projectile distance vs angle: example @ theta = 10 degree
clc
disp('4/23/2024 ECE105 / Usane Bolt')
% given:
g= -9.806; % unit: m/s^2
v0_mph=200 % unit mph
v0= v0_mph/2.23694 ; % unit: m/s
theta = 10 % unit: degree
vx0= v0*cosd(theta) % unit: m/s
vy0= v0*sind(theta) % unit: m/s
vx=vx0; % note: vx is constant, no influence from gravity
% At landing, t= t_land, y=0
% note: y= 0.5 * g*t^2 + vy0*t = t(0.5*g*t + vy0)
t_land = -2* vy0/g
x_land= vx* t_land % unit: m
***
Experiment: Using AI to solve Satellite Orbit Problem
Experiment: Using AI to solve Satellite Orbit Problem
No report is required
Solution provided by ChatGPT
https://chatgpt.com/share/68337ebb-4d20-800b-bd50-11a865e64d18
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Course Evaluation
ECE105 / Section #29313
Class time will be allocated for course evaluation at the end of semester:
Spring 2026 Engineering Student Course Evaluation (link)
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Last Assignment/ One Thing (link)
Last Assignment/ One Thing (link)
(post 4/29, due 5/8)
(post 4/29, due 5/8)
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