- error flag
- error-free running period
- error function
- error-function distribution
- error indication circuit
- error in electromagnetic measurement
- error in pointing
- error integral
- error integral performance index
- error interrupt
- error in the input data
- error-in-variables
- error law
- error-law distribution
- error limit
- error list
- error-locating
- error lock
- error logger
- error matrix
- error mean principle
- error mean square
- error measure
- error model
- error norm