[Ngspice-users] How to view the value of a parameter?

[ngspice u. <d16...@ti...>]

Hello, dear community.
Could you please tell me how to view the calculated parameters in the 
.PARAM section?
For example, I have the following definitions in a circuit with a 
voltage source and a resistor:
---
.PARAM pippo=100 po=20
.PARAM pp={pippo + po}
R1 0 _net0 {pp} tc1=0.0 tc2=0.0
V1 _net0 0 DC 0 SIN(0 1 1 0 0 0) AC 1 ACPHASE 0
---
Is there a way to view the value of the calculated 'pp' parameter? For 
example, using commands in the .control block?
Thank you.