[eigen] How can we do in-place calculation for log(x)

[Hung Dang <hungptit@xxxxxxxxx>]

Hi,

I need to compute x = log(x) in-place, with x can be either a vector or a matrix. This task can be done using either a simple for-loop or x = x.array().log(). The second solution is vectorized, however, I am not sure if it can be done in-place. Is there any better solution?

Regards,

Hung