\magnification=1200 \baselineskip=20pt \nopagenumbers \font\big=cmr12 scaled \magstep2 \centerline{\bf STANFORD UNIVERSITY} \centerline{\bf DEPARTMENT OF STATISTICS} \centerline{\bf MONTE CARLO MARKOV CHAINS IN SCIENTIFIC COMPUTING} \bigskip \baselineskip=12pt \centerline{3:15 p.m., Thursday, October 26, 2000} \centerline{Sequoia Hall Rm. 200} \bigskip \baselineskip=15pt \centerline{\sl Persi Diaconis} \centerline{\sl Department of Statistics} \centerline{\sl Stanford University} \bigskip \centerline{\bf The Hit and Run Algorithm and Its Variations} \bigskip Smith's hit and run algorithm attempts to move great distances. I will review basics, a host of variations and recent work of Lovrsz giving good rates of convergence. \bye