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class Operator(object):
"""The Operator class is for operators(+, -, *, / etc)
Example:
'+', '-', '*' etc
Note:
Not to be confused with 'operator' and 'operand' properties of 'Function' class
"""
def __init__(self):
self.tid = None
self.scope = None
self.value = None
def __str__(self):
represent = ""
represent += str(self.value)
return represent
def differentiate(self):
return self
class Binary(Operator):
"""Binary operator takes two operands
Example:
'2 + 2', '5/6' etc
Extends:
Operator
"""
def __init__(self, value=None):
super().__init__()
if value is not None:
self.value = value
class Sqrt(Operator):
def __init__(self, power=None, operand=None):
super().__init__()
if power is not None:
self.power = power
if operand is not None:
self.operand = operand
def __str__(self):
represent = ""
if self.operand.value == -1:
represent += r"\iota "
else:
represent += r"\sqrt" + self.operand.__str__()
return represent
class Plus(Binary):
"""Class for '+'
Extends:
Binary
"""
def __init__(self):
super().__init__()
self.value = '+'
class Minus(Binary):
"""Class for '-'
Extends:
Binary
"""
def __init__(self):
super().__init__()
self.value = '-'
class Multiply(Binary):
"""Class for '*'
Extends:
Binary
"""
def __init__(self):
super().__init__()
self.value = '*'
class Divide(Binary):
"""Class for '/'
Extends:
Binary
"""
def __init__(self):
super().__init__()
self.value = '/'
class EqualTo(Binary):
"""Class for '='
Extends:
Binary
"""
def __init__(self):
super().__init__()
self.value = '='
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