MATLAB Demystified phần 5 pps
MATLAB Demystified phần 5 pps
... 2 4 6
5
0
5
10
15
20
25
30
35
40
45
x
x
2
+ x − 2
1/2
Figure 5- 5 A plot of the quadratic equation solved in Example 5- 1
144
MATLAB Demystifi ed
Quiz
1. Use MATLAB to enter
72 56 0 58 −+
as ... variable)
CHAPTER 5 Algebraic Equations/Symbolic Tools
143
−6 −4 −2 0 2 4 6
−20
− 15
−10
5
0
5
10
15
x
x − 1/6x
3
+ 1/120x
5
Figure 5- 9 Plot of the Taylor seri...
MATLAB Demystified phần 1 pps
... For
example:
CHAPTER 1 The MATLAB Environment
5
SOLUTION 1-1
The command required to fi nd the value of the fi rst expression is
>> 5* (3/4) + 9 /5
ans =
5. 550 0
For the second expression, ... of
433.12 multiplied by 15. 7. We type 433.12 * 15. 7 at the MATLAB prompt and hit
the enter key. The result looks like this:
>> 433.12* 15. 7
ans =
6.8000e+003
MATLAB spits o...
MATLAB Demystified phần 6 pps
... damped oscillator
0 5 10 15
0
0 .5
1
1 .5
2
2 .5
3
3 .5
4
t
Position
Figure 6-19 The momentum for a critically damped oscillator
0 5 10 15
−1.2
−1
−0.8
−0.6
−0.4
−0.2
0
t
Momentum
172
MATLAB Demystifi ... identifying the local minimum found in Example 6-6
−2 −1 .5 −1 −0 .5
0 0 .5 1 1 .5 2 2 .5 3
0
5
10
15
20
25
30
x
x
4
− 2x
3
Local minimum
180
MATLAB Demystifi...
Accounting Demystified phần 5 pdf
... as follows:
Land $100,000
Building 50 0,000
Equipment 50 ,000
Furniture 25, 000
Fixtures 15, 000
690,000
Less: Accumulated depreciation 190,000
Net fixed assets $50 0,000
The notes would have the following ... per-
cent on January 5, 2002:
1/ 05/ 02 Note receivable 1,000
Cash 1,000
To record issuance of note
To record payment of the note at maturity on April 5, 2002:
4/ 05/ 02 Cash 1,029 ....
Accounting Demystified phần 7 pps
... inventory 50 0 Purchase discounts 50 0
Sell 50 0 units for $100 each that cost us $50 each
Accounts receivable 50 ,000 Accounts receivable 50 ,000
Sales 50 ,000 Sales 50 ,000
Cost of goods sold 25, 000 No ... at $50 per unit
Merchandise inventory 50 ,000 Purchases 50 ,000
Accounts payable 50 ,000 Accounts payable 50 ,000
Pay freight of $1 ,50 0 for delivery of the purchases
Merchan...
MATLAB Demystified phần 2 pptx
... 27 37 36 30 31 33
32 34 35 29 28 38 39 25
41 23 22 44 45 19 18 48
49 15 14 52 53 11 10 56
8 58 59 5 4 62 63 1
This matrix is too big for most of us to tackle, but MATLAB fi nds:
>> rref(magic(8))
ans ... –108
Since det(S) ≠ 0, the inverse must exist. MATLAB spits it out for us:
>> T = inv(S)
T =
–0.9 259 0.48 15 0.48 15 0.1111
–0.6296 0. 157 4 0. 657 4 0. 055...
MATLAB Demystified phần 3 ppt
... plot(x,y), axis([0 5 –1 1])
This generates the plot shown in Figure 3-13.
Now let’s make a plot of y = e
−3/2x
sin(5x + 3). First we try 0 ≤ x ≤ 5, −1 ≤ y ≤ 1.
>> y = exp(–1 .5* x).*sin (5* x+3);
>> ... we will take 5 ≤ x ≤ 5. So we define our data array
as
>> x = [ 5: 0.01 :5] ;
Now we redefine the functions. Remember if we don’t do this and we’re in the
same sessio...
MATLAB Demystified phần 4 pptx
... students
100 959 0 858 0 757 0 656 055 50
Score
Algebra midterm exam
Figure 4-2 Making a nicer bar chart by binning the data
CHAPTER 4 Statistics/Intro to Programming
103
Basic Statistics
50 55 60 65 70 75 80 85 ... mu
mu =
24. 653 8
23 23 .5 24 24 .5 25 25. 5 26 26 .5 27
0
0.2
0.4
0.6
0.8
1
x
exp(−(x− 25)
2
)
Figure 4-8 A bell curve with a mean of 25 years
CHAPTER 3 Plotting and...
MATLAB Demystified phần 7 docx
...
1 95
10 20 30 40 50 60 70
−1 .5
−1
−0 .5
0
0 .5
1
1 .5
t
Figure 7- 15 When y(0) = y′(0) = 1, the amplitude of the solution
shrinks and then gets larger again—but there is no phase reversal
−1 −0 .5 ... xdot = eqx(t,x);
%allocate array to store data
0 0.1 0.2 0.3 0.4 0 .5 0.6 0.7
0
0.0 05
0.01
0.0 15
0.02
0.0 25
0.03
0.0 35
0.04
0.0 45
0. 05
t
y(t)
Figure 7-6 In the second cas...
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