1. Announcements Exam 2 Next Week!! Final Exam :
Monday May 6th, 2:00 – 4:00 p.m.
HH 002
Wednesday : Exam 2 Study Day
HH 002 for Questions

2. Arrays Array – Set of Values with One Name MatLab Creation :
arrayName = [ 1,3,5 ];
Vector – One Dimensional Array
Matrix – Two Dimensional Array
Element – One Member (Value) in an Array
Offset or Subscript – location of an Element in and Array (in MatLab, starting with 1)
Row Vector - “Row” of Values
Column Vector - “Column” of Values

3. Array Element Addition/Subtraction
>> rowV = [ 1, 3, 5 ]
rowV =
>> rowV + 2
ans =
>> rowV - 5

4. Array Element Multiplication/Division
>> rowV * 2
ans =
>> rowV / 2

5. Array Element Exponentiation
>> rowV^2
Error using ^
One argument must be a square matrix and the other must be a scalar. Use POWER (.^) for elementwise power.
>> rowV.^2
ans =

6. Array to Array Operations
>> rowV2 = [ 2, 4, 6]
rowV2 =
>> rowV + rowV2
ans =
>> rowV - rowV2

7. Array to Array Operations
>> rowV * rowV2
Error using *
Inner matrix dimensions must agree.
>> rowV .* rowV2
ans =

8. Array Functions – max(), min()
>> max(rowV)
ans = 5
>> min(rowV) 1

9. Array Functions – length(), size()
length() - Number of Elements in Vector
size() - Returns a vector [NumRows, NumCols]
>> length(rowV)
ans = 3
>> size(rowV)

10. Array Functions – sum()
>> sum(rowV)
ans = 9
>> sum(rowV2) 12

11. Exam 2 Everything Through Quiz 2 if/then switch/case while loops
for loops
Functions
function result = doThis(parameter1, parameter2)
Arrays
Creation
Access
Scalar Element to Element Operations
Array to Array Operations
max(), min(), length(), size(), sum()