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 **
 Exponentiation--binary                          (Mathematical)
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 Syntax

     <nNumber1> ** <nNumber2>
     <nNumber1> ^  <nNumber2>

 Type

     Numeric

 Operands

     <nNumber1> is the numeric value to raise to a power.

     <nNumber2> is the power to raise <nNumber1>.

 Description

     The exponentiation operator (**) is a binary operator that raises
     <nNumber1> to the power of <nNumber2>.

 Examples

     .  This example shows exponentiation results to 16 decimal
        places, using different operands:

        SET DECIMALS TO 16
        ?  3 **  0            // Result: 1.000000000
        ?  3 **  1            // Result: 3.000000000
        ?  3 ** -2            // Result: 0.111111111
        ? -3 **  2            // Result: 9.000000000
        ? -3 **  0            // Result: 1.000000000
        ? -1 **  3            // Result: 1.000000000
        ? -2 **  3            // Result: 8.000000000
        ?  2 ** -3            // Result: 0.125000000
        ?  1 ** -3            // Result: 1.000000000