  We report a Dalitz-plot analysis of the charmless hadronic decays of charged
B mesons to the final state K+/- pi-/+ pi+/-. Using a sample of 226.0 +/- 2.5
million BBbar pairs collected by the BaBar detector, we measure the magnitudes
and phases of the intermediate resonant and nonresonant amplitudes for both
charge conjugate decays. We present measurements of the corresponding branching
fractions and their charge asymmetries that supersede those of previous BaBar
analyses. We find the charge asymmetries to be consistent with zero.
