I have a 2-dim matrix like this:
0.3436 0.3283 0.3890 0.0274 0.1137 0.4443 0.3484 0.0889 0.2748 0.3124 0.4074 0.0439
and a vector with column indexes for each row
3 2 2
Task is to invert values to get result like this:
0.3436 0.3283 -0.3890 0.0274 0.1137 -0.4443 0.3484 0.0889 0.2748 -0.3124 0.4074 0.0439
I believe there is a simple way to do that efficiently without for-loop cycles. Any idea?
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