j****i
发帖数: 305 | 1 How to find the minimum number x such that 1 + x > 1 in floating number
system in c++? | S**I
发帖数: 15689 | 2 #include
FLT_EPSILON
DBL_EPSILON
LDBL_EPSILON
【在 j****i 的大作中提到】
: How to find the minimum number x such that 1 + x > 1 in floating number
: system in c++?
| j****i
发帖数: 305 | 3 Instead of using macros, can we write code to get this, for example, by
manipulating bits? I'm just wondering.
s
【在 S**I 的大作中提到】
: #include
: FLT_EPSILON
: DBL_EPSILON
: LDBL_EPSILON
| l******e
发帖数: 12192 | 4 numeric_limits::epsilon()
【在 j****i 的大作中提到】
: Instead of using macros, can we write code to get this, for example, by
: manipulating bits? I'm just wondering.
: s
| S**I
发帖数: 15689 | 5 double getDoubleEpsilon(){
double a = 1;
while(1.0 + a/FLT_RADIX != 1.0)
a /= FLT_RADIX;
return a;
}
【在 j****i 的大作中提到】
: Instead of using macros, can we write code to get this, for example, by
: manipulating bits? I'm just wondering.
: s
|
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