Terms containing convergence errors

Subject	English	Russian
math.	convergence error	ошибка сходимости (buraks)
media.	convergence errors	ошибки сведения (лучей)
math.	in the case of linear convergence, in each step the error is multiplied by an almost constant convergence factor whose absolute value is less than 1	множитель сходимости
media.	systematic convergence error	систематическая ошибка сведения (лучей)