class Derivative:
derivatives = {} #will load from config/derivatives.yaml during __init__.py
def __init__(self, code):
self.code = code
self.formula = Formula(Derivative.derivatives[code]['formula'])
def form(self):
return Formula(self.formula)
def name(self):
return Derivative.derivatives[self.code]['name']
def code(self):
return self.code
def __str__(self):
return self.code
def mass(self):
return self.formula.mass()
