write a function called tri_area returns the area of a triangle with base b and height h

hello this is my function code and command window code and there is a message of invalid expression at line 2 and i dont know what is the wrong can anyone help me

function [area] = tri_area([b,h]);
tri_area([b,h])=(0.5)*(b)*(h)
area=tri_area([b,h])
end

%command window
area = tri_area[3,2])

[Tushar Tahelramani]

actually my code wgich is similar almost similar to yours work well for 1st assessment of tri_area[3,2] , but second assessment indicates RANDOM INPUTS for that i don't know what to do

plz help me

[pramod kumar jaipal]

for randam input

[Mujibur Rahman]

function [area, tri_area]= tri_area (b, h)
    
    area=(1/2)*(b)*(h)
    vca = area(:);
    tri_area = sum(vca);
end

[Hrvoje Rogulj]

function [area, tri_area]= tri_area (b, h)

area=(1/2)*(b)*(h)

end

[Abdullah Javed]

Make a little change in your code and it will work.

function [area] = tri_area(b,h)
tri_area(b,h)=(0.5)*(b)*(h)
area=tri_area(b,h)
end

[Walter Roberson]

this will not work for inputs that are not positive integers.

[Naveen Gehlot]

function [area, tri_area]= tri_area (b, h)

area=(1/2)*(b)*(h)

vca = area(:);

tri_area = sum(vca);

end

use this function for randow inputs

it will works.

Answer 1

[Torsten]

function area = tri_area(b,h)
    area = 0.5*b*h;
end

From the command window

A = tri_area(3,2)

[Ayush Khandelwal]

Error show

[Walter Roberson]

what error shows up?

[ayya aqdas]

what is the answer for random inputs here?

[Walter Roberson]

>> tri_area(rand,rand)

ans =

          0.19421832587356

>> tri_area(rand,rand)

ans =

        0.0299210820832802

>> tri_area(rand,rand)

ans =

         0.362726197496423

[Aadesh Navade]

how to convert the negative values into positive

[Walter Roberson]

You should consider whether you really should convert negative values into positive: negative area has uses.

https://en.wikipedia.org/wiki/Shoelace_formula

[Ishan Pai]

how should we get the random inputs correct ?

[Walter Roberson]

Is there reason to believe that the code is currently processing them incorrectly? What inputs are being used and what response does your code give and what is the expected result?

[SUMANT KUMAR]

still not working

[Walter Roberson]

What difficulty do you observe with this code? What inputs to it are giving the wrong answer?

[SUMANT KUMAR]

Done it. Nothing wrong with the code. There was a problem in random inputs.

[AKASH Talapatra]

kindly can anyone point out me where I was wrong?

[Alric Duarte]

someone please tell the solution for random inputs. i got the same error as above

[Walter Roberson]

See https://www.mathworks.com/matlabcentral/answers/446968-what-is-wrong-with-my-function#comment_839985 for why AKASH Talapatra's code does not work.

Answer 2

[Ramakant Gupta]

function area = tri_area(b,h)
 area = 0.5*b*h;
end

[Walter Roberson]

How does this differ from Torsten's Answer?

[madhan ravi]

Maybe he wanted to test his first answer xD in the forum.