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A general description is here.
Formatting and printing, ‘format(z), print(z)’, of complex vectors ‘z’ no longer zap relatively small real or imaginary parts to zero, fixing PR#16752. This is an API change, as it was documented previously to round real and imaginary parts together on purpose, producing nicer looking output. As mentioned, e.g. in the PR, this change is compatible to many other “R-like” programming environments.
We have simplified the internal code and now basically format the real and imaginary parts independently of each other.
New experimental functions ‘Tailcall’ and ‘Exec’ to support writing stack-space-effcient recursive functions.