Engineering 220
Introduction to MatLab

Fall 2013

16 December 2013


Meeting:  MWF 10:30  - 11:20 AM  Room 1 DLR
Text: 
MatLab--An Introduction with Applications, 4th Ed. by Amos Gilat

View the course HandOut.       View the course  Grade Spreadsheet .   The End

Class Notes   

Gottfried W. Leibnitz:
   It is unworthy for excellent men to lose hours like slaves in the labour of calculation
    which could be safely relegated to anyone else if machines were used.

Assignment What? Assigned Due
one Chapter One:  2, 4, 6, 8,10, 14, 22, 26, 32, 36 
POSTED
30 August
4th Edition
 
two Chapter Two:  1, 3, 5, 7, 8, 10, 14, 16, 22, 23, 29, 32, 37
POSTED
For #22, this works:
  F=[zeros(2,4);0:1:3;zeros(1,1),10:-2:6;zeros(1,1),20:6:32]'  

Seems dopey to type zeros(1,1) rather than just 0.
Notice I found it more "convenient" to form the columns as rows,
and then take the transpose. 
In fact, in MatLab arrays are automatically initialized with zeros,
which I forgot.

4 September
4th Edition
three Chapter Three:  1, 3, 5, 7, 8, 10, 11, 13, 17, 21, 27, 31
POSTED
Note:  #7a  That should read 1% of FINAL value.  The initial value is zero.
The solution in the solutions manual is for the current reaching 99% of its final value.
t99=-(L/R)*log(1-R/V*0.99*if)
But, the final current is if = V/R.  Therefore
t99=-L/R*log(1-R/V*0.99*V/R)=-L/R*log(0.01).
For 1% of the final value, it's t01=-L/r*log(0.99).
11 September
4th Edition
four Chapter 4:  1, 5, 6, 7, 9, 17, 19, 21, 23, 28
POSTED
16 September
4th Edition
five Chapter 5:  1, 4, 7, 17, 32
POSTED
18 September
4th Edition
First Time Trial Chapters 1-5   25 September
six Chapter 6:  2, 6, 11, 16, 18, 32, 33
POSTED
21 September
4th Edition
 seven Chapter 7:  2, 3, 15,19, 36
POSTED
30 September
4th Edition
eight Eight 4 October 11 October
Second Time Trial Chapters/Sections  4.3, 5, 6, 7.8   11 October
nine Nine 16 October 23 October
ten Ten 28 October 1 November
eleven Eleven 6 November 11 November
Third Time Trial inline functions, 2-d plots, solve simultaneous linear equations using matrices (chapt. 3),
 solve a nonlinear equation using the built-in function
  13 November
twelve Twelve 18 November 22 November
Written Quiz numerical stuff: solving differential equations, nonlinear equations
simultaneous nonlinear equations, integrating
&
gray flying foxes: where do they live, and what do they eat
4 December,
 
thirteen Thirteen 25 November 6 December
 

Get all your m-files off the workstations.  I will be deleting all m-files
still on the work stations prior to the Grand Prix.

 
Final Exam Grand Prix Time Trial
A collection of problems taken from the
MatLab textbook,
plus one taken from some other book.
2 PM
11 December