Write a MATLAB function that will accept the values a, b and c as inputs and return the value of A as output.

Write a MATLAB function that will accept the values a, b and c as inputs and return the value of A as output.

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By Anonymous

The area, A, of a triangle with sides of length a, b and c is given by

A=sqrt (s(s -a)(s -b)(s-c))

where s =(a+b+c) / 2 .

Write a MATLAB function that will accept the values a, b and c as inputs and return the value of A as output.

a) You have to take input from the user for a,b and c.

b) The first line of the file must have the format:

function [list of outputs] = function name(list of inputs)

c) Document the function. That is, describe briefly the purpose of the function and how it can be used. These lines should be preceded by % which signify that they are comment lines that will be ignored when the function is evaluated.

d) What changes are required, if we want to return the value of ‘s’ too from this function.

 

Solution:

funtion Question7()

    SideA = input('Enter value for side A of a Triangle: ');        %getting input

    SideB = input('Enter Value for side B of a Triangle: ');           %getting input

    SideC = input(‘ Enter Value for side C of a Triangle: ');            %getting input

   

    Area = FindArea(SideA, sideB,SideC);   %findig Area

   

    FPRINTF('Area of Triangles with sides %.2f, %.2f, %.2f is %.2f \n', SideA, SideB, SideC, Area);

end

Function[Argument Area ] = FindArea( MA, MB, MC )

    S = (MA + MB + MC) / 2;    %Using formula

   

    Argument_Area =  sqrt(S * (S-MA) * (S-MB) * (S-MC));

end         

output of the following MATLAB code.

output of the following MATLAB code.

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By Anonymous

Q#6:

What will be the output of the following MATLAB code.

S = 1; n = 1;

while S+(n+1)^2 < 100

n = n+1; S = S + n^2;

end

[n,S]

Solution:

Here below is the output

%Output displayed

MATLAB program which will take input a charater ‘a’ value from user. You have to use switch statement to decide if value of a is ‘t’ then you have to call table function, if value of a is ‘f’ then call factorial function, if value of a is ‘p’ then call prime function, if value of a is ‘s’ then call search function.

MATLAB program which will take input a charater ‘a’ value from user. You have to use switch statement to decide if value of a is ‘t’ then you have to call table function, if value of a is ‘f’ then call factorial function, if value of a is ‘p’ then call prime function, if value of a is ‘s’ then call search function.

Posted in matlab

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By Anonymous

Write a MATLAB program which will take input a charater ‘a’ value from user. You have to use switch statement to decide if value of a is ‘t’ then you have to call table function, if value of a is ‘f’ then call factorial function, if value of a is ‘p’ then call prime function, if value of a is ‘s’ then call search function.

You have to write four functions in your program;

Table(n1,n2)

Factorial(n3)

Prime(n4)

Search(char n5[], char c, char choice)

Table function will print the table of n1 from 1 to n2.

Factorial function will print the factorial of n3 if n3 is multiple of 2.

Prime function will tell that n4 is prime or composite.

Search function will take first argument n5 as an array of characters and second element a character to be search in the array and third element a character to decide which searching algorithm to be used.i.e. if user has passed the value of c as ‘s’ then Search function will perform the sequential search but if value of c is something else then Search function will perform binary search.

Structure of your program will be like this. You have to make it exactly working.

Switch(a)

{

case ‘f’:

factorial();

break;

case ‘p’:

prime();

break;

case ‘t’:

table();

break;

case ‘s’:

search();

break;

}

Solution:

function QUETION5()                                               %Start the function

    disp('[t] TABLE');                                                  %Display the Menu

    disp('[f] FACTORIAL');

    disp('[p] PRIME');

    disp('[s] SEARCH');

    c=input('ENTER CHOICE: ','s');                          %Choice input

   

    switch (c)                                                    %Switch cases check

        case 't'

            n1=input('ENTER NO: ');                             %input from user

            n2=input('ENTER LIMIT: ');

            TABLE(n1,n2);                                               %Call table function

        case 'f'

            n3=input('ENTER THE NO: ');                    %input from user

            FACTORIAL(n3);                                          %Call factorial function

        case 'p'

            n4=input('ENTER THE NO: ');                     %input from user

            PRIME(n4);                                                   %Call prime function

        case 's'

            n=input('ENTER NO OF ELEMENTS: ');                %input from user

            c=input('ENTER ELEMENT TO SEARCH: ');   %input from user

            for i=1:n

                value=input('ENTER VALUE: ');             %Input Array from user

                n5(i)=value;

            end

            disp('[s] SEQUENTIAL');                             %Choice to which algo apply

            disp('[b] BINARY');

            ch=input('ENTER CHOICE: ','s');

            SEARCH( n5, c , ch);

       

        otherwise

            disp('SELECT ANOTHER ONE');

    end

end

function TABLE(n1,n2)                                             %Table function

    for n=1:n2

        disp([num2str(n1),'*',num2str(n),'=',num2str(n1*n)]);

                                                    %Print table

    end

end

function FACTORIAL(n3)                                          %Factorial function

   if(mod(n3,2)==0)                                                   %Checking factorial condition

        fact=1;

        for i=n3:-1:1

            fact=fact*i;                                         %Calculate factorial

        end

        disp(fact);                                               %Printing factorial

   else

       disp('ERROR!!!');

   end

   

end

function PRIME(n4)                                                 %Prime function

if(mod(n4,n4)==0 && mod(n4,2)~=0)

%if(isprime(n4)==1)

    disp('YES PRIME');

else

    disp('NOT PRIME');

end

end

function SEARCH( n5, c , ch)                                   %Search function

count=0;

if(ch=='s')                                                                    %Giving Condition for sequential search

    for i=1:length(n5)                                                  %Using Sequential search algorithm

        if(c==n5(i))

        count=count+1;

        end

    end

end

    if(count==0)

        disp('NOT FOUND !!!');

    else

        disp('FOUND');

    end

   

    if(ch=='b')                                                              %Condition for Binary search is used here

        low=1;                                                                  %Use of Binary search Algorithm

high=length(n5);

index=0;

while low<=high && index==0

    mid=floor((low+high)/2);

    if n5(mid)==c

        index=mid;

        disp(['FOUND AT INDEX  :',num2str(index)]);

    elseif c<n5(mid)

        high=mid-1;

    else

        low=mid+1;

    end

end

    end

end