def getChampernowneConstant( ):
'''This function creates the Champernowne constant for the input base.'''
result = ''
count = 1
while len( result ) <= mp.dps:
result += convertToBaseN( count, g.inputRadix )
count += 1
return convertToBase10( '0', result, g.inputRadix )
def convertLatLongToNAC( args ):
if isinstance( args, RPNGenerator ):
return convertLatLongToNAC( list( args ) )
elif not isinstance( args, list ):
args = [ args, 0 ]
elif args and isinstance( args[ 0 ], list ):
return [ convertLatLongToNAC( i ) for i in args ]
elif len( args ) == 1:
args.append( 0 )
numerals = '0123456789BCDFGHJKLMNPQRSTVWXZ'
if args[ 0 ] > 90.0 or args[ 0 ] < -90.0:
raise ValueError( '\'natural_area_code\' requires a latitude parameter of -90 to 90' )
if args[ 1 ] > 180.0 or args[ 1 ] < -180.0:
raise ValueError( '\'natural_area_code\' requires a longitutde parameter of -180 to 180' )
lat = fdiv( fadd( args[ 0 ], 90 ), 180 ) * 729000000
long = fdiv( fadd( args[ 1 ], 180 ), 360 ) * 729000000 # 30 ** 6
return convertToBaseN( long, 30, False, numerals ) + ' ' + convertToBaseN( lat, 30, False, numerals )