if statement in Matlab

I running the following if-loop:

sigmat=24;
n=1.5;
sigmam=20;
N=200; 
si=sigmat/n;
if si>=sigmam
  F=N/si;
end;

But after this script is run out I can not claim a value of F in command window (F should be equal 12,5). Where did I mistake in this script?

Answer 1

[Star Strider]

The problem is that ‘si’ is 16 and ‘sigmam’ is 20. The if condition always evaluates to false, and the if block never executes.

Also, if you want ‘F’ to output to the Command Window, remove the semicolon at the end of the line. The presence of the semicolon suppresses Command Window output:

F=N/si

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I like your avatar!

[Sergey Dukman]

Ok.

To evaluate F (when ‘si’ is 16 and ‘sigmam’ is 20), should I use while loop then?

Sergey

[Sergey Dukman]

Sorry!

I got it now. I have to use opposite condition as si<=sigmam to define F.

thank you Sir!

Yours look also good :)

[Star Strider]

My pleasure!

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