(-0.125)^8*2^30

(-0.125)^8*2^30
(-0.125)^8*2^30

(-0.125)^8*2^30
=（-0.125）^8*8^10
=(-0.125*8)^8*8^2
=1*64=64
总之就是把2^30拆了,在组合

(-0.125)^8*2^30=-0.00000006153891098*1073741824=66.0729025

(-0.125)^8*2^30
=(-1/8)^8*2^30
=[(-1/2)^3]^8*2^30
=(-1/2)^24*2^30
=(1/2)^24*2^24*2^6
=[(1/2)*2]^24*2^6
=1^24*64
=64.

-0.125=-2^-3 (-0.125)^8*2^30=2^6=64