You may find some Matlab Commands here - http://jayitsecurity.blogspot.com/2013/01/matlab-commands-operators-and-special.html
Write a pseudocode and matlab program which
receive a positive integer value as input and then output the following message
“Even Number” or “Odd Number”.
Example:
Input: Enter
a number: 7
Output: Odd
number
Input: Enter
a number: 8
Output: Even
number
Answer:
Pseudocode
Start
Read input Num
x = Modulus (Num, 2)
If x equals 0
then display Num is an even number
Else
display Num is an odd number
End
Matlab program
Num = input('Enter a positive integer number: ')
x = mod(Num,2);
if x
== 0
sprintf('%d is an even number', Num)
else
sprintf('%d is an odd number',
Num)
end
Sample outputs
Enter a positive integer number: 5
ans =
5 is an odd number
Enter a positive integer number: 8
ans =
8 is an even number
Write the expression of matlab language which is equivalent with the
following mathematical expressions:
a.
b2 – 4ac
b.
(a + b) (c + d) (e + f)
Answer:
a.
b*b – 4*a*c
b.
(a + b)*(c + d)*(e + f)
A chemist uses
the decision table below to determine whether a solution is very
acidic, acidic, neutral, alkaline, or very alkaline. Write a program that
will read in the value of pH for a solution and display its type.
Table 1
pH range
|
Liquid types
|
>12
8 – 12
7
3 – 6
<= 2
|
very alkaline
alkaline
neutral
acidic
very acidic
|
Answer:
clear all,
clc
pH = input('Enter pH value: ');
if pH>12
sprintf('Liquid Type: Very Alkaline')
elseif pH>=8
& pH<=12
sprintf('Liquid Type: Alkaline')
elseif pH==7
sprintf('Liquid Type: Neutral')
elseif pH>=3
& pH<=6
sprintf('Liquid Type: Acidic')
else
sprintf('Liquid Type: Very Acidic')
end
Sample outputs
Enter pH value: 1
ans =
Liquid Type: Very Acidic
Enter pH value: 11
ans =
Liquid Type: Alkaline
Enter pH value: 7
ans =
Liquid Type: Neutral
Write a program which accepts input time in second and then output it in
hour, minute and second.
Example:
Enter time in
second: 3770
3770 seconds =
1 hour 2 minutes 50 seconds.
Answer:
Matlab program
clear all,
clc;
InputSeconds = input('Enter time in seconds: ');
Seconds = mod(InputSeconds,60);
Bal_Seconds = InputSeconds - Seconds;
Hours = int8(Bal_Seconds/3600);
Minutes =
int8(mod(Bal_Seconds,3600)/60);
sprintf('%d
second(s) = %d hour(s) %d minute(s) %d second(s)',InputSeconds,Hours,Minutes,Seconds)
Sample outputs
Enter time in seconds: 3770
ans =
3770 second(s) = 1 hour(s) 2 minute(s) 50 second(s)
Enter time in seconds: 7281
ans =
7281 second(s) = 2 hour(s) 1 minute(s) 21 second(s)
Enter time in seconds: 325
ans =
325 second(s) = 0 hour(s) 5 minute(s) 25 second(s)
