LJD CSE assignment 3

EDU>> % question 3.10
a=(0:0.1:6.2);
sin(a);
cos(a);
tan(a);
TABLE=[a',sin(a)',cos(a)',tan(a)']

TABLE =

         0         0    1.0000         0
    0.1000    0.0998    0.9950    0.1003
    0.2000    0.1987    0.9801    0.2027
    0.3000    0.2955    0.9553    0.3093
    0.4000    0.3894    0.9211    0.4228
    0.5000    0.4794    0.8776    0.5463
    0.6000    0.5646    0.8253    0.6841
    0.7000    0.6442    0.7648    0.8423
    0.8000    0.7174    0.6967    1.0296
    0.9000    0.7833    0.6216    1.2602
    1.0000    0.8415    0.5403    1.5574
    1.1000    0.8912    0.4536    1.9648
    1.2000    0.9320    0.3624    2.5722
    1.3000    0.9636    0.2675    3.6021
    1.4000    0.9854    0.1700    5.7979
    1.5000    0.9975    0.0707   14.1014
    1.6000    0.9996   -0.0292  -34.2325
    1.7000    0.9917   -0.1288   -7.6966
    1.8000    0.9738   -0.2272   -4.2863
    1.9000    0.9463   -0.3233   -2.9271
    2.0000    0.9093   -0.4161   -2.1850
    2.1000    0.8632   -0.5048   -1.7098
    2.2000    0.8085   -0.5885   -1.3738
    2.3000    0.7457   -0.6663   -1.1192
    2.4000    0.6755   -0.7374   -0.9160
    2.5000    0.5985   -0.8011   -0.7470
    2.6000    0.5155   -0.8569   -0.6016
    2.7000    0.4274   -0.9041   -0.4727
    2.8000    0.3350   -0.9422   -0.3555
    2.9000    0.2392   -0.9710   -0.2464
    3.0000    0.1411   -0.9900   -0.1425
    3.1000    0.0416   -0.9991   -0.0416
    3.2000   -0.0584   -0.9983    0.0585
    3.3000   -0.1577   -0.9875    0.1597
    3.4000   -0.2555   -0.9668    0.2643
    3.5000   -0.3508   -0.9365    0.3746
    3.6000   -0.4425   -0.8968    0.4935
    3.7000   -0.5298   -0.8481    0.6247
    3.8000   -0.6119   -0.7910    0.7736
    3.9000   -0.6878   -0.7259    0.9474
    4.0000   -0.7568   -0.6536    1.1578
    4.1000   -0.8183   -0.5748    1.4235
    4.2000   -0.8716   -0.4903    1.7778
    4.3000   -0.9162   -0.4008    2.2858
    4.4000   -0.9516   -0.3073    3.0963
    4.5000   -0.9775   -0.2108    4.6373
    4.6000   -0.9937   -0.1122    8.8602
    4.7000   -0.9999   -0.0124   80.7128
    4.8000   -0.9962    0.0875  -11.3849
    4.9000   -0.9825    0.1865   -5.2675
    5.0000   -0.9589    0.2837   -3.3805
    5.1000   -0.9258    0.3780   -2.4494
    5.2000   -0.8835    0.4685   -1.8856
    5.3000   -0.8323    0.5544   -1.5013
    5.4000   -0.7728    0.6347   -1.2175
    5.5000   -0.7055    0.7087   -0.9956
    5.6000   -0.6313    0.7756   -0.8139
    5.7000   -0.5507    0.8347   -0.6597
    5.8000   -0.4646    0.8855   -0.5247
    5.9000   -0.3739    0.9275   -0.4031
    6.0000   -0.2794    0.9602   -0.2910
    6.1000   -0.1822    0.9833   -0.1853
    6.2000   -0.0831    0.9965   -0.0834

EDU>>
EDU>> % Question 3.11
A=4;
t=0:10;
w=0.6;
x=4*cos(0.6*0:10);
[t',x']

ans =

         0    4.0000
    1.0000    2.1612
    2.0000   -1.6646
    3.0000   -3.9600
    4.0000   -2.6146
    5.0000    1.1346
    6.0000    3.8407
    7.0000    3.0156
    8.0000   -0.5820
    9.0000   -3.6445
   10.0000   -3.3563

EDU>> %question 3.12
A=4;
t=0:10;
w=0.6;
acceleration=A*w^2*cos(w*t)
[t',x',acceleration']


acceleration =

  Columns 1 through 4

    1.4400    1.1885    0.5218   -0.3272

  Columns 5 through 8

   -1.0618   -1.4256   -1.2913   -0.7060

  Columns 9 through 11

    0.1260    0.9140    1.3826


ans =

         0    4.0000    1.4400
    1.0000    2.1612    1.1885
    2.0000   -1.6646    0.5218
    3.0000   -3.9600   -0.3272
    4.0000   -2.6146   -1.0618
    5.0000    1.1346   -1.4256
    6.0000    3.8407   -1.2913
    7.0000    3.0156   -0.7060
    8.0000   -0.5820    0.1260
    9.0000   -3.6445    0.9140
   10.0000   -3.3563    1.3826

EDU>> %question 3.13
distance=120;
min_angle=27;
max_angle=33;
max_height=distance*atan(max_angle)
min_height=distance*atan(min_angle)

max_height =

  184.8603


min_height =

  184.0531

EDU>> %question 3.14
%a
new_distance=20;
new_height=200;
new_angle=atan(new_height/new_distance)*180/pi
%b
c_suqared=(new_distance^2+new_height^2);
distance_to_top = sqrt(c_suqared)

new_angle =

   84.2894


distance_to_top =

  200.9975

EDU>>
EDU>> %question 3.15
tc1=[84.3,86.4,85.2,87.1,83.5,84.8,85.0,85.3,85.3,85.2,82.3,84.7,83.6]
tc2=[90,89.5,88.6,88.9,88.9,90.4,89.3,89.5,88.9,89.1,89.5,89.4,89.8]
tc3=[86.7,87.6,88.3,85.3,80.3,82.4,83.4,85.4,86.3,85.3,89,87.3,87.2]
datatable=[thermocouple1;thermocouple2;thermocouple3]'

tc1 =

  Columns 1 through 4

   84.3000   86.4000   85.2000   87.1000

  Columns 5 through 8

   83.5000   84.8000   85.0000   85.3000

  Columns 9 through 12

   85.3000   85.2000   82.3000   84.7000

  Column 13

   83.6000


tc2 =

  Columns 1 through 4

   90.0000   89.5000   88.6000   88.9000

  Columns 5 through 8

   88.9000   90.4000   89.3000   89.5000

  Columns 9 through 12

   88.9000   89.1000   89.5000   89.4000

  Column 13

   89.8000


tc3 =

  Columns 1 through 4

   86.7000   87.6000   88.3000   85.3000

  Columns 5 through 8

   80.3000   82.4000   83.4000   85.4000

  Columns 9 through 12

   86.3000   85.3000   89.0000   87.3000

  Column 13

   87.2000


table =

   84.3000   90.0000   86.7000
   86.4000   89.5000   87.6000
   85.2000   88.6000   88.3000
   87.1000   88.9000   85.3000
   83.5000   88.9000   80.3000
   84.8000   90.4000   82.4000
   85.0000   89.3000   83.4000
   85.3000   89.5000   85.4000
   85.3000   88.9000   86.3000
   85.2000   89.1000   85.3000
   82.3000   89.5000   89.0000
   84.7000   89.4000   87.3000
   83.6000   89.8000   87.2000

EDU>> max(table)

ans =

   87.1000   90.4000   89.0000

EDU>> min(table)

ans =

   82.3000   88.6000   80.3000

Too many places to mark where John helped, I was fairly lost on this assignment, re-reading the texts and trying this again at home.