truncation error(n = noun.act) - (mathematics) a miscalculation that results from cutting off a numerical calculation before it is finished;
is a kind of miscalculation, misestimation, misreckoning

algorithm error, by trial and error, computer error, disk error, error, error correction code, hardware error, inborn error of metabolism, literal error, margin of error, plaintiff in error, programming error, rounding error, run-time error, runtime error, semantic error, software error, syntax error, system error, trial and error, truncation, typographical error, writ of error