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...

Ngày tải lên: 12/08/2014, 21:20

... 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...

Ngày tải lên: 12/08/2014, 21:20

... 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...

Ngày tải lên: 12/08/2014, 21:20

... 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 ....

Ngày tải lên: 06/08/2014, 10:20

... 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...

Ngày tải lên: 06/08/2014, 10:20

Ngày tải lên: 12/08/2014, 08:20

... 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...

Ngày tải lên: 12/08/2014, 21:20

... 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...

Ngày tải lên: 12/08/2014, 21:20

... 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...

Ngày tải lên: 12/08/2014, 21:20

... 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...

Ngày tải lên: 12/08/2014, 21:20