How to you put sin function in Simulink

How do you put this function in simulink .

-2 cos(t/2)+2

I tried using the sine wave sine block in simulink but can not plot this graph.

Answer 1

[Paul]

Feed the output of a Clock into a Gain of 1/2. Feed the touput of that gain into a Trigonmetric Function block, select the cos option. Feed the output of that into a Gain of -2. Feed the output of that into a Bias block, set the parameter to 2.

Or use the fact that

cos(t/2) == sin(t/2 + pi/2)

So we can use the Sine Wave block with parameters:

Amplitude = -2

Frequency = 1/2

Phase = pi/2

Bias = 2