flatMapTo

inline fun <R, C : MutableCollection<in R>> ComplexFloatArray.flatMapTo(destination: C, transform: (ComplexFloat) -> Iterable<R>): C
inline fun <R, C : MutableCollection<in R>> ComplexDoubleArray.flatMapTo(destination: C, transform: (ComplexDouble) -> Iterable<R>): C

Appends all elements yielded from results of transform function being invoked on each element of original array, to the given destination.