The author has 4 posts.
超正方体的体积计算公式
|
Floor 1
218.88.141.*
3/18/11 22:03
V4=a^4
|
|
|
Floor 2
218.88.141.*
3/18/11 22:06
1cm4=10000mm4（也就是1e4mm4） 1dm4=1e4cm4 1m4=1e4dm4 1hm4=(1e4)^2=1e8m4 1km4=1e12m4 |
|
|
Floor 3
218.88.141.*
3/18/11 22:06
1四次方千米就是1000000000000四次方米！
|
|
|
Floor 4
218.88.141.*
3/18/11 22:38
棱长是3dm的超正方体，体积是： V4=3^4=81(dm4) |
