截断变量MATLAB [英] Truncating variable MATLAB

问题描述

我正在使用MATLAB中的数组A.此数组中的值最多包含5个小数.我想将这些值截断为更少的十进制数.

I'm working with an array A in MATLAB. The values in this array have up to 5 decimals. I would like to truncate those values to a less number of decimal.

有没有办法做到这一点?

Is there a way to accomplish this?

谢谢！

推荐答案

由于某种原因，Matlab的"truncate"函数称为fix.所以

For some reason, Matlab's "truncate" function is called fix. So

>> fix(3.5) 
ans = 3

>> fix(-3.5)
ans = -3

要将任何内容截断，舍入，舍入或舍入到小数位数，请乘以数十次幂，截断，舍入，舍入或舍入到ceil，然后将结果除以数十次幂.

To truncate, round, floor, or ceil anything to a given number of decimals, multiply by powers of tens, truncate, round, floor, or ceil, and then divide the result by powers of tens.

所以:

>> fix(123.456 * 10^2)
ans = 12345

>> ans / 10^2
ans = 123.45

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