65 arguments to the plot command. 
65 arguments to the plot command. 
66 
66 
67 .. #[[Anoop: I think it will be good to rephrase the sentence]] 
67 .. #[[Anoop: I think it will be good to rephrase the sentence]] 
68 .. #[madhu: Why "you" here? Shouldn't this be "we" as decided? Also I 
68 .. #[madhu: Why "you" here? Shouldn't this be "we" as decided? Also I 
69 added "the default" check the diff] 
69 added "the default" check the diff] 

70 
70 The additional argument that we shall be passing in here now is the 
71 The additional argument that we shall be passing in here now is the 
71 colour argument. We shall first clear the figure and plot the same in 
72 colour argument. We shall first clear the figure and plot the same in 
72 red colour. Hence 
73 red colour. Hence 
73 
74 
74 .. #[Madhu: Note the diff for changes] 
75 .. #[Madhu: Note the diff for changes] 
75 :: 
76 

77 :: 
76 
78 
77 clf() 
79 clf() 
78 plot(x, sin(x), 'r') 
80 plot(x, sin(x), 'r') 
79 
81 
80 As we can see we have the same plot but now in red colour. 
82 As we can see we have the same plot but now in red colour. 
81 
83 
82 .. #[Madhu: diff again] 
84 .. #[Madhu: diff again] 
83 
85 
84 To alter the thickness of the line, we use the ``linewidth`` argument in the plot 
86 To alter the thickness of the line, we use the ``linewidth`` argument 
85 command. Hence 
87 in the plot command. Hence :: 
86 :: 

87 
88 
88 plot(x, cos(x), linewidth=2) 
89 plot(x, cos(x), linewidth=2) 
89 
90 
90 produces a plot with a thicker line, to be more precise plot with line 
91 produces a plot with a thicker line, to be more precise plot with line 
91 thickness 2. 
92 thickness 2. 
94 same plot, as you have not cleared the figure]] 
95 same plot, as you have not cleared the figure]] 
95 .. #[Madhu: To Anoop, not necessary I feel since they can see it?] 
96 .. #[Madhu: To Anoop, not necessary I feel since they can see it?] 
96 
97 
97 {{{ Show the plot and compare the sine and cos plots }}} 
98 {{{ Show the plot and compare the sine and cos plots }}} 
98 
99 
99 {{{ Pause here and try out the following exercises }}} 
100 Pause here and try out the following exercises, 
100 
101 
101 .. #[[Anoop: is the above a context switch for the person who does the 
102 .. #[[Anoop: is the above a context switch for the person who does the 
102 recording, other wise if it an instruction to the person viewing 
103 recording, other wise if it an instruction to the person viewing 
103 the video, then I guess the three braces can be removed.]] 
104 the video, then I guess the three braces can be removed.]] 
104 
105 
151 {{{ Show the options available for line style and colors }}} 
152 {{{ Show the options available for line style and colors }}} 
152 
153 
153 .. #[Madhu: The script needs to tell what needs to be shown or 
154 .. #[Madhu: The script needs to tell what needs to be shown or 
154 explained.] 
155 explained.] 
155 
156 
156 {{{ Pause here and try out the following exercises }}} 
157 Pause here and try out the following exercises 
157 
158 
158 .. #[[Anoop: same question as above, should it be read out?]] 
159 .. #[[Anoop: same question as above, should it be read out?]] 
159 
160 
160 %% 2 %% Plot the sine curve with green filled circles. 
161 %% 2 %% Plot the sine curve with green filled circles. 
161 
162 
242 
243 
243 The solution is to enclose the whole string in between $. Hence, 
244 The solution is to enclose the whole string in between $. Hence, 
244 :: 
245 :: 
245 
246 
246 title("Parabolic function $x^2+4x5$") 
247 title("Parabolic function $x^2+4x5$") 
247 #[[Bhanu: Dollar sign should enclose only the mathexpression. change 
248 
248 made.]] 
249 .. #[[Bhanu: Dollar sign should enclose only the mathexpression. change 

250 made.]] 
249 
251 
250 gives a title that looks neatly formatted. 
252 gives a title that looks neatly formatted. 
251 
253 
252 Although we have title, the plot is not complete without labelling x 
254 Although we have title, the plot is not complete without labelling x 
253 and y axes. Hence we shall label xaxis to "x" and yaxis to "f(x)" :: 
255 and y axes. Hence we shall label xaxis to "x" and yaxis to "f(x)" :: 