In Simulink, which option is more efficient, regarding computational cost?

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Daniel Pereira
Daniel Pereira 2016-2-26
I've got a Simulink model with a division of two signals that are always greater than or equal to 0. I know that this division is 0 if the denominator is 0.
Which option should I choose to obtain the better performance or lower computational cost?
OPTION 1 uses, in my point of view, 1 variable less.
But, on the other hand, OPTION 2 uses a constant signal, instead of the variating in2.
What do you think/suggest?

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