[Scilab-users] Conditional assignments

[Stefan Du Rietz]

If the interpreter is not smart enough and the vector is large, maybe 
this is faster -- only one computation/element:

index = a<5;
b = zeros(a);
b(index) = a(index)^2;
b(~index) = a(~index)^0.5;

/Stefan


On 2013-04-21 21:49, Michael Dunn wrote:
--------------------
> Say I want to do an array (vector) assignment, but the formula
> requires a conditional. Is there a better way to do it than:
>
> b = ((a^2).*(a<5)) + ((a^0.5).*(a>=5))
>
> which returns a^2 for a<5, and sqrt(a) for a>=5.
>
> And – just curious – if this is the only way, is the interpreter smart
> enough to not waste its time computing the false expression?
>
>
> Thanks,
>
>
> Michael Dunn | Editor-in-Chief
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