ieee-754
For any finite floating point value, is it guaranteed that x - x == 0?
Floating point values are inexact, which is why we should rarely use strict numerical equality in comparisons. For example, in Java this prints false (as seen on ideone.com):[详细]
2023-01-14 07:09 分类:问答Number of floats between two floats
Say I have two Python floats a and b, is there an easy way to find out how many representable real numbers are between the two in IEEE-754 representation (or whatever representation the machine used i[详细]
2023-01-13 17:19 分类:问答Convert MBF Single and Double to IEEE
Follow-Up available: There\'s a follow-up with further details, see Convert MBF to IEEE. I\'ve got some legacy data which is still in use, reading the binary files is not the problem, the number fo[详细]
2023-01-02 12:21 分类:问答is memset(ary,0,length) a portable way of inputting zero in double array [duplicate]
This question already has answers here: Closed 12 years ago. Possible Duplicate: What is faster/prefered memset or for loop to zero out an array of doubles[详细]
2023-01-01 12:49 分类:问答how IEEE-754 floating point numbers work
Let\'s say I have this: float i = 1.5 in binary, this float is represented as: 0 01111111 10000000000000000000000[详细]
2022-12-28 06:06 分类:问答Is there a floating point value of x, for which x-x == 0 is false?
In most cases, I understand that a floating point comparison test should be implemented using over a range of values (abs(x-y) < epsilon), but does self subtraction imply that the result will be ze[详细]
2022-12-28 05:19 分类:问答Convert pre-IEEE-754 C++ floating-point numbers to/from C#
Before .Net, before math coprocessors, before IEEE-574, Microsoft defined a bit pattern for floating-point numbers. Old versions of the C++ compiler happily used that definition.[详细]
2022-12-27 13:06 分类:问答Compilation platform taking FPU rounding mode into account in printing, conversions
EDIT: I had made a mistake during the debugging session that lead me to ask this question. The differences I was seeing were in fact in printing a double and in parsing a double (strtod). Stephen\'s a[详细]
2022-12-26 15:24 分类:问答Fixed Point to Floating Point and Backwards
Is converting Fixed Pt. (fixed n bit for fraction) to IEEE double safe ? ie: does IEEE double format can represent all numbers a fixed point can represent ?[详细]
2022-12-25 20:28 分类:问答王牌竞速逐浪强度怎么样?
瘋子拿把刀 2022-04-14 22:54 王牌竞速逐浪强度怎么样?逐浪定位为干扰,能够持续对敌方造成干扰效果,打断对方节奏,不少玩家比较好奇这款车怎样。接下来为大家带来王牌竞速逐浪强度厉害吗。[详细]
2022-12-25 18:21 分类:问答