🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPortuguêsEntityQ55138579· pop 6· linked from 6 articlesHelen Lingsoftware engineerConnectionsUnited StatesCountryNASAConceptInternational Standard Book NumberCategories20th-century American mathematicians20th-century American women mathematicians21st-century American womenAmerican people of Chinese descentAmerican software engineersLiving peopleNASA peopleYear of birth missing (living people)