floating-point exponent

例句：

1. 1.In computer programming, the floating-point exponent determines how many digits are used to represent a number.
   在计算机编程中，浮点指数决定了如何用数字表示一个数。
2. 2. The engineer calculated the exact value of the floating-point exponent using a calculator.
   工程师使用计算器精确计算了浮点指数的值。
3. 3. The scientist discovered that the floating-point exponent can affect the accuracy of calculations.
   科学家发现浮点指数会影响计算的准确性。