On Sun, May 29, 2011 at 3:50 PM, Christophe BAL <[email protected]> wrote:
> Hello,
> I've just tried the following code" in Sage :
>
> ==================
> x = var('x')
> solve(exp(x)-exp(x**2),x)
> ==================
>
> The output is :
>
> ============
> [e^(x^2) == e^x]
> ============
>
> Why the exp are not "cancelled" ? Here there is no problem contrary to the
> case of an equation like log(x^2) == log(x) ?
>
> Best regards.
> C.
>
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I think the solution you get is mathematically correct because
e^(x^2) = e^x => x^2 = x + 2*i*pi*n
for any integer n.
Rajeev
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