双精度数的指数的偏差是1023。

The bias for a double's exponent is 1023.

youdao

双精度数是以类似的方式编码的，但是它使用52位的尾数和11位的指数来获得更高的精度。

Doubles are encoded in much the same way except that they use a 52-bit mantissa and an 11-bit exponent for higher precision.

youdao

指数函数是一个很好的例子，它表明处理有限精度浮点数(而不是无限精度实数)时是需要非常小心的。

The exponential function serves as a good example of how careful you have to be when dealing with limited-precision floating-point Numbers instead of infinitely precise real numbers. ex (Math.exp ).

youdao