Unfortunately, full_simplify has its own problems, notably with branch
cuts.
sage: f = (1/2)*log(2*t) + (1/2)*log(-t)
sage: f.full_simplify()
1/2*log(2)
Unfortunately, when t=-1, we have the sum of the logarithms of two
negative numbers, and therefore the imaginary part is 2i pi, not 0
On Jan 12,
On 01/13/2012 07:38 PM, JamesHDavenport wrote:
Unfortunately, full_simplify has its own problems, notably with branch
cuts.
sage: f = (1/2)*log(2*t) + (1/2)*log(-t)
sage: f.full_simplify()
1/2*log(2)
In my session, I had the difference of two logarithms. In yours above,
you've got the sum. Is
