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jjinglin

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» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

libralibra

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

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jjinglin: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2013-03-01 18:38:03
CODE:
>> a = 0.9723

a =

    0.9723

>> b = sprintf('%.2f',a)

b =

0.97

>> c = 0.9756

c =

    0.9756

>> d = sprintf('%.2f',c)

d =

0.98

>>

matlab/VB/python/c++/Javaд³ÌÐòÇë·¢QQÓʼþ:790404545@qq.com
2Â¥2013-03-01 17:23:34
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

libralibra

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

æôÆï½«¾ü

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Õ²ÅÍü¼Çת»ØÈ¥ÊýÖµÀàÐÍ,bºÍd¶¼ÊÇ×Ö·û´®,ÕâÑù¾ÍºÃÁË
CODE:
>> b = str2num(b)

b =

    0.9700

>> d = str2num(d)

d =

    0.9800

matlab/VB/python/c++/Javaд³ÌÐòÇë·¢QQÓʼþ:790404545@qq.com
3Â¥2013-03-01 17:25:14
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hoddescle

ľ³æ (СÓÐÃûÆø)

ÀϺͲ¿¶Ó

ÖÒÏÍËæÃ÷Ö÷£¬¼éØúÃÙ»è¾ý
4Â¥2013-03-01 19:40:07
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ahqph

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
4Â¥: Originally posted by hoddescle at 2013-03-01 19:40:07
help vpa

¶þ¡¢ÔÚСÊýµãºóijһλËÄÉáÎåÈë,¼´±£Áô¼¸Î»Ð¡Êý,Ò²¾­³£Óõ½¡£
1.ÊýÖµÐÍ roundn¡ªÈÎÒâλλÖÃËÄÉáÎåÈë
>>a=123.4567890;
>>a=roundn(a,-4)
a =   123.4568
ÆäÖÐroundnº¯Êý¹¦ÄÜÈçÏ£º   

y = ROUNDN(x) rounds the input data x to the nearest hundredth.   %²»Ö¸¶¨n£¬¾«È·µ½°Ù·Öλ y = ROUNDN(x,n) rounds the input data x at the specified power    %¾«È·µ½Ð¡ÊýµãºóÖ¸¶¨Î»Êýn
5Â¥2015-08-13 20:39:09
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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