pub fn fit_area(samples: &[(Area, u64)], floor: u64, carries: &[f64]) -> AreaFitExpand description
The area fit of samples (an instance’s area, Quartus’s ALUTs) with at least floor ALUTs: of the carries, the
weight under which the log ratios of Quartus’s count over luts + weight × carry spread least, the scale their
geometric mean. Small instances are left out: a few LUTs either way is most of them.