def __init__(self, phrase, var_values = None, variables = None,\
cpx = True, constants = {'e':e, 'pi':pi, 'I':1j, \
'π':pi, 'inf':'inf', 'oo':'inf'}, asimp = True):
"""makes a Function given a string phrase and isolates its variables"""
self.complex = cpx
self.phrase = phrase
self.phrase = eqn_helper.make_friendly(\
self.phrase, constants.keys(), self.complex)
if constants != None:
for name in constants:
self.phrase = eqn_helper.replace_constants(\
self.phrase, constants[name], name)
self.phrase = eqn_helper.make_friendly(\
self.phrase, constants.keys(), self.complex)
else:
self.constants = dict('')
self.constants = constants
#autosimplify
self.asimp = asimp
self.var_names = eqn_helper.get_variables(self.phrase, self.complex)
if variables == None:
#default list of variables for testing purposes
if var_values == None:
self.var_values = [i+1 for i in range(len(self.var_names))]
else:
self.var_values = var_values
#the order of variable assignment and dictionary creation allows
#the variables in a Function to simply be assigned left to right
self.variables = dict(zip(self.var_names, self.var_values))
else:
self.set_variables(variables)
self.terms = self.init_terms()
self.degrees = self.init_degrees()
def __init__(self, phrase, cpx = False, constants = {'e':e, 'pi':pi,\
'I':1j, 'π':pi, 'inf':'inf', 'oo':'inf'}):
"""makes a Function given a string phrase and isolates its variables"""
self.complex = cpx
self.phrase = phrase
self.phrase = make_friendly(\
self.phrase, constants.keys(), self.complex)
if constants != None:
for name in constants:
self.phrase = replace_constants(\
self.phrase, constants[name], name)
self.phrase = make_friendly(\
self.phrase, constants.keys(), self.complex)
else:
self.constants = dict('')
self.constants = constants
self.var_names = get_variables(self.phrase, self.complex)
self.imd = RawEvaluator(self.phrase)
