Help on specific math functions in Tcl as built in to the [expr] command.

   * [abs]
   * [atan]
   * [atan2]
   * [entier]
   * [hypot]
   * [rand]
   * [sqrt]
   * [srand]

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'''See also:'''

   * [pi]

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[[[Category Command]|[Category Mathematics]|[Importing expr functions]]]