@MISC{SIN_COS9.MIZ,
  AUTHOR = {Liang, Xiquan and Xie, Bing},
  TITLE = {Inverse Trigonometric Functions Arctan and Arccot},
  SECTION1 = {Function arctan and arccot},
  SECTION2 = {Several Differentiation Formulas of arctan and arccot},
  DAY = {18},
  MONTH = {March},
  YEAR = {2008},
  ADDRESS1 = {Department of Mathematics and Physics\\
           Qingdao University of Science and Technology\\China},
  ADDRESS2 = {Department of Mathematics and Physics\\
           Qingdao University of Science and Technology\\China},
  SUMMARY = {This article describes definitions of inverse trigonometric
          functions arctan, arccot and their main properties, as well as
          several differentiation formulas of arctan and arccot.}}
