       </dd>
          <dd>
            For example, to emulate JavaScript numbers in terms of the exponent
            values at which they begin to use exponential notation, use
            <code>[-7, 20]</code>.
          </dd>
          <dd>
            <pre>BigNumber.config({ EXPONENTIAL_AT : 2 })
new BigNumber(12.3)         // '12.3'        e is only 1
new BigNumber(123)          // '1.23e+2'
new BigNumber(0.123)        // '0.123'       e is only -1
new BigNumber(0.0123)       // '1.23e-2'

BigNumber.