c++ Programming Glossary: epsilon

http://stackoverflow.com/questions/13940316/floating-point-comparison-revisited

scale and the larger is in the range 0.5 1 1 ulp is just epsilon 2. return std abs max_frac scaled_min_frac ulps limits epsilon.. 2. return std abs max_frac scaled_min_frac ulps limits epsilon 2 I claim that this code a handles all of the relevant cases.. is to specify that ulps must be less than .5 limits epsilon . Then rounding occurs in max_frac scaled_min_frac only if the..

Most effective way for float and double comparison

http://stackoverflow.com/questions/17333/most-effective-way-for-float-and-double-comparison

an algorithm that if a b and b c then a c . Using the same epsilon for lines measured in inches and lines measured in mils .001.. 1000b . This is why AlmostEqual2sComplement asks for the epsilon or max ULPS . The use of the same epsilon for both the cosine.. asks for the epsilon or max ULPS . The use of the same epsilon for both the cosine of angles and the length of lines Using..

Floating point keys in std:map

http://stackoverflow.com/questions/6684573/floating-point-keys-in-stdmap

point number comparison is usually something like a b epsilon . But I don't see a straightforward way to do this with std.. double double bool public own_double_less double arg_ 1e 7 epsilon arg_ bool operator const double left const double right const.. version is return left right return abs left right epsilon left right double epsilon your map map double double own_double_less..

Why comparing double and float leads to unexpected result? [duplicate]

http://stackoverflow.com/questions/6722293/why-comparing-double-and-float-leads-to-unexpected-result

What is a lambda expression in C++11?

http://stackoverflow.com/questions/7627098/what-is-a-lambda-expression-in-c11

examples e.g. void func5 std vector double v const double epsilon std transform v.begin v.end v.begin epsilon double d double.. const double epsilon std transform v.begin v.end v.begin epsilon double d double if d epsilon return 0 else return d .. v.begin v.end v.begin epsilon double d double if d epsilon return 0 else return d You can capture by both reference..