the process of solving a problem by trying various methods until you find a method that is successful :
Children learn to use computer programs by trial and error .
the process of solving a problem by trying various methods until you find a method that is successful :
Children learn to use computer programs by trial and error .
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005