In Sage, `==`

is used both for comparison as in Python,
and as an equality symbol in symbolic equations.

So when you type

```
e^(i*260) == e^(-i*100)
```

since `e^(i*260)`

and `e^(-i*100)`

live in Sage's
"symbolic ring" (which is where symbolic expressions
live in Sage), `==`

is interpreted as the equation
equality. This is why the output is the equation

```
e^(i*260) == e^(-i*100)
```

If you want to evaluate whether the equation holds
or not, you can apply `bool`

to it:

```
bool(e^(i*260) == e^(-i*100))
```

and this will force the evaluation and return `True`

or `False`

.

Note that `True`

means Sage was able to prove that
the equality holds, while `False`

means it either
knows the equality does not hold, or could not prove
that the equality holds.

If you don't want to retype the equation, give it a name.

```
sage: eq = e^(i*260) == e^(-i*100)
sage: eq
e^(i*260) == e^(-i*100)
sage: bool(eq)
False
```

By the way, did you mean `260`

and `-100`

as angle
measures in degrees? You should convert to radians.

```
sage: eqq = e^(i*260*pi/180) == e^(-i*100*pi/180)
sage: eqq
e^(13/9*I*pi) == e^(-5/9*I*pi)
sage: bool(eqq)
True
```