University College Computer Applications Lectures
"Explore MATLAB lectures on flow control, loops, switch-case statements, and relational/logical operators at Al-Mustaqbal University College. Learn programming concepts with examples and practical exercises."
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AL-Mustaqbal University College COMPUTER APPLICATIONS: MATLAB Mayas Aljibawi
Lecture Number 5 Flow Control - 2
While..end This loop is used when the number of passesis not specified. The looping continues until a stated condition is satisfied. The while loop has the form: while expression Block of statements end Example: a=1; while a<=10 z=a+1; a=a+1; end disp(z)
Write a program to print the Hello World based on the entered number x=input('enter the value\n'); while x~=0 disp('hello') x=x-1; end
Switch ....Case The switch statement executes certain statements based on the value of variable or expression. switch switch_expr case case_expr1 commands ... case {case_expr2,case_expr3} commands ... otherwise commands ... end
Example: x=input('enter the value\n'); switch (x) case 1 disp ('first') case 2 disp('second') case 3 disp('third') otherwise disp('not in the first places') end
Write a program to print Stop if the entered value is red , Go if the enter value is green otherwise print Prepare . x=input('enter the value\n , 's ); % input strings (like names) switch (x) case 'red' disp ('stop') case 'green' disp('go') otherwise disp('prepare') end
Relational and Logical Operators A relational operator compares two numbers by determining whether a comparison is true or false. Relational operators are shown in the Table.
and && . ) ( clc clear a=input('enter the value\n'); if( a > 15 && a < 5) ---------- disp('in range ) else disp('not in range') end
|| or ) ( clc clear a=input('enter the value\n'); if( a < 15 || a > 5) disp('in range') else disp('not in range') end ----------
Write a program to find the factorial of the entered number factorial 4 ( 1*2*3*4 ) . clc clear a=input('enter the value\n'); f=1; for i=1:a f=f*i; end disp(f)
Write a program to find the even and odd number based on entered number. -- 2 8 , , mod , mod(8,2) < clc clear clc clear a=input('enter the value\n ); X=mod(a,2); switch x case 0 disp('even') otherwise disp('odd') end a=input('enter the value\n'); switch (mod(a,2)) case 0 disp('even') otherwise disp('odd') end
IF clc clear a=input('enter the value\n'); x=mod(a,2); if(x==0) disp('even') else disp('odd') end clc clear a=input('enter the value\n'); if(mod(a,2)==0) disp('even') else disp('odd') end
