1 | initial version |

Inheritance is used when you want to build a class that is a particular case of an existing class (by adding some features). In your case, this looks more like a "mix", hence inheritance seems not very appropriate.

I am not sure i understand your wish clearly, does something along this way makes sense for you ?

```
class MyObject(SageObject):
def __init__(self, a, b, t):
self.a = a
self.b = b
self.t = t
if t == 0 or t == infinity:
self.I = var('t') == t # self.I takes the value "t == 0" or "t == infinity"
else:
self.I = integral(a**b*e**(-x**2), x, 0, t)
```

Perhaps could you describe the behaviour you want to see as an example of creation and interaction with the object, so we can help you more.

2 | No.2 Revision |

Inheritance is used when you want to build a class that is a particular case of an existing class (by adding some features). In your case, this looks more like a "mix", hence inheritance seems not very appropriate.

I am not sure i understand your wish clearly, does something along this way makes sense for you ?

```
class MyObject(SageObject):
def __init__(self, a, b, t):
self.a = a
self.b = b
self.t = t
if t == 0 or t == infinity:
self.I = var('t') == t # self.I takes the value
```~~"t == 0" ~~one of the expressions "(t == 0)" or ~~"t == infinity"
~~"(t == infinity)"
else:
self.I = integral(a**b*e**(-x**2), x, 0, t)

Perhaps could you describe the behaviour you want to see as an example of creation and interaction with the object, so we can help you more.

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