Tag Archives: FPGA

Some common units

A metre is the basic unit of length.

1 m
= 10 dm (decimetres)
= 100 cm (centimetres)
= 1000 mm (millimetres)
= 1,000,000 μm (micron or micrometres)
= 1,000,000,000 nm (nanometres)
= 1,000,000,000,000 pm (picometres)

Fixed and float point

[ZT] from http://www.cnblogs.com/cloudseawang/archive/2007/02/06/641652.html

最近做HDR时,经常要用NV提供的16位纹理,它的说明书16位能达到24位的精度,就很奇怪?一直搞不懂浮点数的精度怎么算的?
今天认真看了一下IEEE float point的标准,终于明白是什么了

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