[Math] Reciprocal -block in Simulink

Question

I have nonlinear-differential -system for water-flow. I need to find the reciprocal -block in Simulink. I could do it with reciprocal-sqrt -block and sum -block but too complicated, there must be some easier way of doing the reciprocal. How can I take the reciprocal in Simulink?

Answer 1

Use Fcn block with 1/u(1) function.