Adder¶

The adder (adder or, summer element) has one or more signal lines as inputs and one or more single signal lines as output. For each input signal, the sign can be set individually. With only one input line the adder can form an inverter.

You can change the sign of the inputs by selecting the signal line and pressing the + or - key on the numeric keypad or by using the signal lines pop-up menu.

Function: y(t)=±u₁(t) ± u₂(t) ± ... ± u_n(t)

Example:
y1 = u1 - u2 + u3
y2 = u1 - u2 + u3