python - 如何计算两个指数数之差

Question

我想用python计算两个指数数之间的差

a = 4,592e+9
b = 7,892e+9
c = b - a
print ('c = ',c)

我收到以下错误消息：

TypeError: unsupported operand type(s) for -: 'tuple' and 'tuple'

标签： python

Answer 1

只需替换,为.

a = 4.592e+9
b = 7.892e+9
c = b - a
print ('c = ',c)