pyramidal error of prism

regression of double error

double image prism

roof prism (=roof-angle prism)

absolute limit of error

accuracy diagnosis of error motion

acumulation of error

An error of Ishikawa iterations

Analysis of error

analysis of error measurement

Analysis of error source

Analysis on Calibration Error of Strap Balance

angle closing error of traverse

angular error of closure

averaging effect of error

azimuth error of closure

Back-propagation of error BP

band of error

bound of error rates