How to compare variables without if statement

I'm looking to verify that two variables produce the same (or different, then an error will occur) result. I'm looking to find a quick way to do this without utilizing if statements.

Answer 1

[dpb]

>> assert(3==4,'Mismatch')
Mismatch 
>> assert(3==3,'Mismatch')
>> 

ADDENDUM:

Of course, you can make things more interesting by wrapping the assert inside a try...catch construct...

>> a=3;b=4;        % unequal variables
>> try
     assert(a==b,'')  % check equality, no message output
   catch
     disp('Unequal')  % do whatever on error here
   end
Unequal
>> 

Of course, what this gains over simply writing a straightforward if...else...end construct is difficult to see without context.

[new2matlab]

Can you explain this?

[dpb]

What's to explain?

> help assert
 assert Generate an error when a condition is violated.
    assert(EXPRESSION) evaluates EXPRESSION and, if it is false, displays the
    error message 'Assertion Failed'.
 
    assert(EXPRESSION, ERRMSG) evaluates EXPRESSION and, if it is false,
    displays the character vector contained in ERRMSG. ...

See the doc for all the gory details.

You gave no klews as to what you expect to be able to do...