1. The difference between observed values and the values predicted by a model or equation in statistics, mathematics, or engineering
The regression analysis showed a residual error of 0.5 units.
A análise de regressão mostrou um erro residual de 0,5 unidades.
2. In computing and software testing, an error that persists after initial correction or debugging attempts
The developer identified a residual error in the code after the first patch.
O desenvolvedor identificou um erro residual no código após o primeiro patch.
3. In signal processing, the unexplained portion of a signal after filtering or noise reduction
The residual error indicated that the filter was not optimal for this application.
O erro residual indicou que o filtro não era ideal para esta aplicação.