I am trying to calculate $\log(-1+i)$
I have $\log(-1+i) = \ln|(-1+i)| + i\operatorname{Arg}(-1+i)$
$ = \ln\sqrt2 + i3\pi/4$
However when I checked that in matlab and wolfram alpha they have
$\frac{\ln\sqrt2}{2} + i3\pi/4$
Can't see what Im doing wrong.