Problems.dtlz1_g: def of unified-nsga-iii@0.2.2.0
Import: import unified-nsga-iii@0.2.2.0/problems.bend as Problems
Lines 275-279 of unified-nsga-iii@0.2.2.0/problems.bend: https://jend.leeeet.dev/read.txt?path=unified-nsga-iii@0.2.2.0/problems.bend&start_line=275&end_line=279

import Base
import unified-nsga-iii@0.2.2.0/util.bend as Util

# C# DtlzHelper.GDtlz1: 100 * ((n - M + 1) + Σ (d² - cos(20 π d))), d = x-0.5.
# On a legal k≥1 box the tail length is n-M+1, which is that coefficient.
def dtlz1_g(+x: List<&2, F32>, m: Nat) -> F32:
  +tail = tail_from_m(x, m)
  F32.mul(100.0, F32.add(F32.from_nat(Util.list_len(F32, tail)), sum_dtlz1(tail)))

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.from_nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.mul
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/problems.bend&name=sum_dtlz1
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/problems.bend&name=tail_from_m
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/util.bend&name=list_len