double arithmetic
10.500000 + 1.250000 = 11.750000
10.500000 - 1.250000 = 9.250000
10.500000 * 1.250000 = 13.125000
10.500000 / 1.250000 = 8.400000
float arithmetic
10.500000 + 1.250000 = 11.750000
10.500000 - 1.250000 = 9.250000
10.500000 * 1.250000 = 13.125000
10.500000 / 1.250000 = 8.400000