关于高精度浮点运算

Question

power(exp(1.0),-29200) 报数据上溢,请各位指点一下,如何返回运算的结果,谢谢!

Answer 1

写成：
1/(power(exp(1.0),29200))

Answer 2

不知道是不是数越界了
分类           范围                                字节             备注 
Longint      -2147483648 .. 2147483647      4              有符号32位 
Int64        -263 .. 263                    8               有符号64位 
Real         5.0×10-324 .. 1.7×10308        8               [精度]15..16 
Real48       2.9×10-39 .. 1.7×1038          6              [精度]11..12;向后兼容 
Single       1.5×10-45 .. 3.4×1038          4               [精度]7..8 
Double       5.0×10-324 .. 1.7×10308        8               [精度]15..16 
Extended     3.6×10-4951 .. 1.1×104932      10              [精度]19..20 
Comp         -263 + 1 .. 263 - 1            8                [精度]19..20 
Currency     -922337203685477.5808 .. 922337203685477.5807 8 [精度]19..20 

Answer 3

power(exp(1.0),-29200)的值已经超出了Extended的范围