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 Introduction

     This chapter offers an array of interesting mathematical functions to
     implement in CA-Clipper.  It includes trigonometric functions, finance-
     oriented math computations, and functions to determine the factorial,
     sign, or the next-largest integer of a value.

     SETPREC() is important for trigonometric functions.  With this function
     you can specify the precision as a number of places to the right of the
     decimal.  However, if it is less accurate, the speed is greater.