Survival.perp: def of unified-nsga-iii@0.2.2.0
Import: import unified-nsga-iii@0.2.2.0/survival.bend as Survival
Lines 241-243 of unified-nsga-iii@0.2.2.0/survival.bend: https://jend.leeeet.dev/read.txt?path=unified-nsga-iii@0.2.2.0/survival.bend&start_line=241&end_line=243

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

def perp(+f: List<&2, F32>, +w: List<&2, F32>) -> F32:
  +ww = Util.vec_sqnorm(w)
  perp.pick(f, w, ww, F32.is_lt(ww, 0.0000000000000001))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/survival.bend&name=perp.pick
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/util.bend&name=vec_sqnorm