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Re: if statement
Posted:
Aug 20, 2013 12:48 PM


"Roger Stafford" <ellieandrogerxyzzy@mindspring.com.invalid> wrote in message news:kv03b8$mcl$1@newscl01ah.mathworks.com... > "S C.Carl" wrote in message <kuvtvb$gv5$1@newscl01ah.mathworks.com>... >> a = >> 0.0188 >> b = >> 0.0188 >          > The fact that the 'format short' displays of a and b are the same doesn't > mean that a and b are equal. That display is rounded off to four decimal > places and they could very easily be unequal. I suggest you try 'format > hex' on them.
Or just execute:
difference = ab
For == to say that they are the same, difference must be EXACTLY 0 (ignoring nonfinite and nondouble edge cases involving saturation.) Close doesn't count here; == is neither horseshoes nor hand grenades. In this case difference will likely be a small number, but not exactly 0.
 Steve Lord slord@mathworks.com To contact Technical Support use the Contact Us link on http://www.mathworks.com



