twSci2Dec( cScientific )
 ----------------------------------------------------------------------------
     The functions twDec2Sci(), twSci2Dec(), twStr2Num() and
     twNum2Str() attempt to provide a temporary solution to Clipper's
     inability to display floating point numbers.

     NOTE: Numbers outside the MSC calculation range will result in a
           MSC error which cannot be trapped with ERRORSYS.

       Arguments:

     cScientific - 'C' A number string formatted as:

                           Mantissa E exponent,

                       such as a string returned from twDec2Sci()

       Return:

     Numeric value. If out of range of MSC math, this function will bow
     out ungracefully to DOS. Your program must check for the correct
     range.

       Example:

     twSci2Dec( "3.4567E3" )  -> 3456.73