def sci(x, digs):
 if (type(x) != type('')):
  x = repr(x)
 (sign, intpart, fraction, expo) = extract(x)
 if (not intpart):
  while (fraction and (fraction[0] == '0')):
   fraction = fraction[1:]
   expo = (expo - 1)
  if fraction:
   (intpart, fraction) = (fraction[0], fraction[1:])
   expo = (expo - 1)
  else:
   intpart = '0'
 else:
  expo = ((expo + len(intpart)) - 1)
  (intpart, fraction) = (intpart[0], (intpart[1:] + fraction))
 digs = max(0, digs)
 (intpart, fraction) = roundfrac(intpart, fraction, digs)
 if (len(intpart) > 1):
  (intpart, fraction, expo) = (intpart[0], (intpart[1:] + fraction[:(-1)]), ((expo + len(intpart)) - 1))
 s = (sign + intpart)
 if (digs > 0):
  s = ((s + '.') + fraction)
 e = repr(abs(expo))
 e = (('0' * (3 - len(e))) + e)
 if (expo < 0):
  e = ('-' + e)
 else:
  e = ('+' + e)
 return ((s + 'e') + e)

def sci ( x , digs ) : if ( type ( x ) != type ( '' ) ) : x = repr ( x ) ( sign , intpart , fraction , expo ) = extract ( x ) if ( not intpart ) : while ( fraction and ( fraction [ 0 ] == '0' ) ) : fraction = fraction [ 1 : ] expo = ( expo - 1 ) if fraction : ( intpart , fraction ) = ( fraction [ 0 ] , fraction [ 1 : ] ) expo = ( expo - 1 ) else : intpart = '0' else : expo = ( ( expo + len ( intpart ) ) - 1 ) ( intpart , fraction ) = ( intpart [ 0 ] , ( intpart [ 1 : ] + fraction ) ) digs = max ( 0 , digs ) ( intpart , fraction ) = roundfrac ( intpart , fraction , digs ) if ( len ( intpart ) > 1 ) : ( intpart , fraction , expo ) = ( intpart [ 0 ] , ( intpart [ 1 : ] + fraction [ : ( - 1 ) ] ) , ( ( expo + len ( intpart ) ) - 1 ) ) s = ( sign + intpart ) if ( digs > 0 ) : s = ( ( s + '.' ) + fraction ) e = repr ( abs ( expo ) ) e = ( ( '0' * ( 3 - len ( e ) ) ) + e ) if ( expo < 0 ) : e = ( '-' + e ) else : e = ( '+' + e ) return ( ( s + 'e' ) + e )
set the current image .