Question

What is the function of the following block?

(a) Gives a 1 if the input is negative

(b) Gives a 0 if input is negative

(c) Gives a 1 if input is positive

(d) Gives a 0 if input is positive

The question was posed to me in unit test.

My question comes from Simulation in division SIMULINK and GUIs of MATLAB

Answer 1

The correct answer is (c) Gives a 1 if input is positive

The best I can explain: The above block gives a 1 if the input is positive and a -1 if the input is negative.