#!/usr/bin/env python
# coding: utf-8

# This example shows the computation of the DC bias and sensitivity in a
# voltage divider.
# 

# In[ ]:


import PySpice.Logging.Logging as Logging
logger = Logging.setup_logging()


from PySpice.Spice.Netlist import Circuit
from PySpice.Unit import *




# ![voltage-divider.png](attachment:voltage-divider.png)

# In[ ]:


circuit = Circuit('Voltage Divider')

circuit.V('input', 'in', circuit.gnd, 10@u_V)
circuit.R(1, 'in', 'out', 9@u_kΩ)
circuit.R(2, 'out', circuit.gnd, 1@u_kΩ)


simulator = circuit.simulator(temperature=25, nominal_temperature=25)

analysis = simulator.operating_point()
for node in (analysis['in'], analysis.out): # .in is invalid !
    print('Node {}: {} V'.format(str(node), float(node)))


# In[ ]:


# Fixme: Xyce sensitivity analysis
analysis = simulator.dc_sensitivity('v(out)')
for element in analysis.elements.values():
    print(element, float(element))