几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量

几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 (http://www.dimcax.com/hust/index.php)
-   American standards (http://www.dimcax.com/hust/forumdisplay.php?f=81)
-   -   ansi 9standards0 code issues - which way does the decima (http://www.dimcax.com/hust/showthread.php?t=20221)

huangyhg 2009-09-05 06:08 PM

ansi 9standards0 code issues - which way does the decima
 
ansi which way does the decima
i have forgotten which way the decimal point advances when the number reads x.xxe+.008 as an example.
thank you in advance
check out our whitepaper library.
i'm not sure what you mean and i've never seen the example you used (x.xxe+.008).
i've seen x.xxe8 which is xxx,000,000 written out in full (decimal moves to the right) or x.xxe-8 which is 0.0000000xxx where the decimal moves to the left (should be 7 zeros in there if i can see right on this screen).
of course, you can have an exponent to a fractional power but you don't just move the decimal place in that case to get to the answer.
for example, 2e0.005 is 1.0035.
i might be wrong, but i think that the x.xxe0.008 format means
xxx * 10^0.008
and 2e0.005 means
2*10^0.005 = 2*1.01157 = 2.02315.....
oops
the first number in my previous post should be
x.xx * 10^0.008


所有的时间均为北京时间。 现在的时间是 10:25 AM.