Assignment
Input Function
7.1 Create an M-file that prompts the user to enter a value of x and then calculates the value of sin (x).
7.2 Create an M-file that prompts the user to enter a matrix and then use the max function to determine the largest value entered. Use the following matrix to test your program:
(1, 5, 3, 8, 9, 22)
7.9 Use fprintf to create the multiplication tables from 1 to 13 for the num¬ber 6. Your table should look like this.
1 times 6 is 6
2 times 6 is 12
3 times 6 is 18
LOGICAL OPERATORS: FIND
8.1 A sensor that monitors the temperature of a backyard hot tub records the data shown in Table 8.5.
Table 8.5 Hot-Tub Temperature Data
|
Time of Day
|
Temperature, F
|
|
00:00
|
100
|
|
01:00
|
101
|
|
02:00
|
102
|
|
03:00
|
103
|
|
04:00
|
103
|
|
05:00
|
104
|
|
06:00
|
104
|
|
07:00
|
105
|
|
08:00
|
106
|
|
09:00
|
106
|
|
10:00
|
106
|
|
11:00
|
105
|
|
12:00
|
104
|
|
13:00
|
103
|
|
14:00
|
101
|
|
15:00
|
100
|
|
16:00
|
99
|
|
17:00
|
100
|
|
18:00
|
102
|
|
19:00
|
104
|
|
20:00
|
106
|
|
21:00
|
107
|
|
22:00
|
105
|
|
23:00
|
104
|
|
24:00
|
104
|
(a) The temperature should never exceed 105°F. Use the find function to find the index numbers of the temperatures that exceed the maximum allowable temperature.
(b) Use the length function with the results from pan (a) to determine how many times the maximum allowable temperature was exceeded.
Problem 8.1
hot_tub=[100,101,102,103,103,104,104,105,106,...
106,106,105,104,103,101,100,99,100,102,...
104,106,107,105,104,104];
8.6 Create a function called g that satisfies the following criteria:
For x < -π, g(x) = -1
For x ≥ π and x ≤ π, g(x) = cos (x)
For x > IT, g(x) = -1
Plot your results for values of x from -2π to +2π. Choose your spacing to create a smooth curve.
8.10 Create a program that first prompts the user to enter a value for x and then prompts the user to enter a value for y. If the value of x is greater than the value of y, send a message to the command window telling the user that x > y. If x is less than or equal to y, send a message to the command win¬dow telling the user that y > = x.
8.16 At a local university, each engineering major requires a different number of credits for graduation. For example, recently the requirements were as follows:
|
Civil Engineering
|
130
|
|
Chemical Engineering
|
130
|
|
Computer Engineering
|
122
|
|
Electrical Engineering
|
126.5
|
|
Mechanical Engineering
|
129
|
Prompt the user to select an engineering program from a menu. Use a switch/case structure to send the minimum number of credits required for graduation back to the command window.