原码 反码 补码用英文怎么说?

complement应该是指补码

uncode code 补码就不知道了

　　原码 true form　　无论是正数还是负数，原码的补码的补码还是原码本身。
　　Whether positive or negative, the source code for the filling yards or the originalcode code itself.
　　反码 radix-minus-one complement; base minus one's complement

　　‍ 交叉正反码是一种简单的线性分组码，它组合使用重复码和正反码的编码方法，使其获得较大的最小码距
　　Cross positive and negative coding is a kind of simple linear block codes. It getsrelatively heavy minimum distance which attriute to its special encoding method.

　　补码 complement
　　纯二进制记数系统中的基数补码。
　　Theradix complement in the pure binary numeration system.

•Let r be the base, and n the number of digits
a – b = a + (r^n – 1 –b) + 1
•since the result is modulus r^n, adding rn does not affect the result
–Imagine if your car’s odometer read 54321 and you drove 100,000 miles, it would then
read 54321 again.
•no borrowing is needed
•once (r^n – 1 – b) is fou