def getKCLEquations(self, gnd):
#!!
"""
:param gnd: name of a node that will have its voltage assigned
to 0 (string)
:returns: a list of equations, one for each node. For
the ground node, it just asserts that its voltage is 0. For
the other nodes, the equation asserts that the sum of the
currents going into the node minus the sum of currents going
out of the node is equal to zero.
"""
result = []
for node in self.d.keys():
if not node == gnd:
(currents, signs) = apply(zip, self.d[node])
result.append(le.Equation(signs, currents, 0.0))
result.append(le.Equation([1], [gnd], 0))
return result
def getEquation(self):
return le.Equation([1.0, -1.0, -self.r],
[self.n1, self.n2, self.current], self.v)
def getEquation(self):
#!!
return le.Equation([1.0, -self.K, self.K],
[self.nOut, self.nPlus, self.nMinus], 0.0)
def getEquation(self):
return le.Equation([1.0, -1.0], [self.n1, self.n2], 0)
def getEquation(self):
return le.Equation([1.0], [self.current], self.i)
