Most people seem to want to go the other way. I\'m wondering if there is a fast way to convert fixed point to floating poin开发者_运维技巧t, ideally using SSE2. Either straight C or C++ or even asm wo
I was working on this program and I noticed that using %f for a double and %d for a float gives me something completely different. Anybody knows why this happens?
Assume I do this operation: (X / const) * const with double-precision arguments as defined by IEEE 754-2008, division first, then multiplication.
I\'ve recently read up quite a bit on IEEE 754 and the x87 architecture.I was thinking of using NaN as a \"missing value\" in some numeric calculation code I\'m working on, and I was hoping that using
I wa开发者_开发问答s wondering about how bits are organized on floats (4 bytes), double (8 bytes) and half floats (2 bytes, used on OpenGL implementation).
For example, I wa开发者_JAVA技巧nt to assign 0x5 to %f1.How to achieve this?I found the answer myself.
I am calculating g with e and s, which are all doubles. After that I want to cut off all digits after the second and save the result in x, for example:
This question already has answers here: 开发者_开发知识库 Closed 12 years ago. Possible Duplicate:
As we all know, floating point arithmetic is not always completely accurate, but how do you deal with its inconsistencies?
I have met several cases where people computing reciprocal of a number with very small absolute value. They say the result should be upper bounded, since the reciprocal is very big.
加载中,请稍侯......