# number_with_delimiter(number, options = {}) number_with_delimiter 123456789 #=> "123,456,789" number_with_delimiter 123456789, delimiter: "-" #=> "123-456-789" # number_with_precision(number, options = {}) number_with_precision 123456789 #=> "123456789.000" number_with_precision 123.456789 #=> "123.457" number_with_precision 123.456789, precision:4 #=> "123.4568" number_with_precision 123.456789