def func(*args):
args = list(args)
# Replace string or Expression arguments by symbols.
# Used symbols and corresponding expressions are returned.
args, symargs, expargs = replace_arguments(args, replacer='symbol')
# create lambda function of symbolic result of the given function
lambda_function = lambdify(symargs, function(*args),
modules=Expression)
# evaluate expression and ensure type of result is Expression
expression = lambda_function(*expargs)
if type(expression) not in (list, str, unicode, Expression):
expression = Expression(expression)
return expression
def func(*args):
args = list(args)
# replace string arguments by values of type Expression
args, _, _ = replace_arguments(args, replacer='expression')
# evaluate expression
expression = function(*args)
# concacate expression lists
if type(expression) is list:
expression = ';'.join(map(str, expression))
# create values of type expression, if neccessary
elif type(expression) not in (str, unicode, Expression):
expression = Expression(expression)
return expression
