Cannot use equal operator to test function argumants

I have the following code and I am trying to test if either one of user inputs (out of 3) equals the sum of the other 2 user inputs.

Althought I enter 3 values thatc should return true and therfore the if should happen, it does not.

When I try to write the if condition with a single '=' it des not even let me excute the code.

So any assistance is much appriciated.

function testArgs()

a = input('Enter first value: ');

b = input('Enter first value: ');

c = input('Enter first value: ');

anum = str2double(a);

bnum = str2double(b);

cnum = str2double(c);

if anum==bnum+cnum || bnum==anum+cnum || cnum==anum+bnum

fprintf('some msg');

end

Answer 1

[Fangjun Jiang]

a = input('Enter first value: ')

"a" is already a numerical value.

You don't need all the str2double() calls.

when you call str2double(), it creates a NaN (Not a Number)

a=1

a = 1

str2double(a)

ans = NaN