precise output test
single loss
cleanup
update description
tested frames
Revert "tested frames"

This reverts commit 05069ad416d2a114a954f3e7bf88b0ac2a4fe446.
activated all displays
display all graphs
larger final
recopied derivative code
more expand
tangent is good when input is removed
working tangeant
test passes, finally
fix typo
fixed f6 test
used derivative method
back to complex loss
really test derivative value
Revert "back to complex loss"

This reverts commit 1b5971f542a58cc525c4ad410265a436cb0e96a9.