c++ Programming Glossary: approximationhttp://stackoverflow.com/questions/1092714/conversion-precedence-in-c corresponding parameter of a viable candidate. As a first approximation we can rank the possible matches as follows from best to worst..
implementing the derivative in C/C++ http://stackoverflow.com/questions/1559695/implementing-the-derivative-in-c-c getting the right step size h is a little subtle. The approximation error in f x h f x h 2h decreases as h gets smaller which says.. not too small value of h that minimizes the combination of approximation error and numerical error. As a rule of thumb you can try h..
Instantiating classes by name with factory pattern http://stackoverflow.com/questions/1832003/instantiating-classes-by-name-with-factory-pattern in every circumstance but it is intended to be a first approximation and a more useful default than manually implementing the type..
What is the fastest way to compute sin and cos together? http://stackoverflow.com/questions/2683588/what-is-the-fastest-way-to-compute-sin-and-cos-together linked to an interesting approach of an extremly fast approximation technique with quite good accuray for me this is even faster..
http://stackoverflow.com/questions/2795023/c-template-typedef Vector 3 is equivalent to Matrix 3 1 . In C 03 the closest approximation was template size_t N struct Vector typedef Matrix N 1 type..
How can I write a power function myself? http://stackoverflow.com/questions/2882706/how-can-i-write-a-power-function-myself the root with any algorithm you like any iterative approximation like bisection or Newton method could work . Multiply the result...
ANSI C equivalent of try/catch? http://stackoverflow.com/questions/3762605/ansi-c-equivalent-of-try-catch see for example Symbian C although it's not a very close approximation and it's a lot of work. The usual way to indicate errors or..
Floating point division vs floating point multiplication http://stackoverflow.com/questions/4125033/floating-point-division-vs-floating-point-multiplication some FP units speed up division by performing a reciprocal approximation and multiplying by that. It isn't quite as accurate but is somewhat..
C++: rationale behind hiding rule http://stackoverflow.com/questions/4837399/c-rationale-behind-hiding-rule
Fastest way to get the integer part of sqrt(n)? http://stackoverflow.com/questions/4930307/fastest-way-to-get-the-integer-part-of-sqrtn Inverse Square Root trick. It's a way to get a very good approximation of 1 sqrt n without any branch based on some bit twiddling so..
Convert Lat/Longs to X/Y Co-ordinates http://stackoverflow.com/questions/4953150/convert-lat-longs-to-x-y-co-ordinates to take the opportunity to point out is that this is an approximation. In reality there isn't a simple linear relationship between.. the Earth is not a perfect sphere. In small areas this approximation is close enough as to make no significant difference but on..
Optimizations for pow() with const non-integer exponent? http://stackoverflow.com/questions/6475373/optimizations-for-pow-with-const-non-integer-exponent specific so I'm wondering if there's a way to roll two pow approximations one for each exponent with higher performance I have two constant.. for float algorithms as well. I'm already using a fast pow approximation but it doesn't take these constraints into account. Is it possible.. . Floating point numbers were originally invented as an approximation to logarithms so you can use the integer value as an approximation..
Why comparing double and float leads to unexpected result? [duplicate] http://stackoverflow.com/questions/6722293/why-comparing-double-and-float-leads-to-unexpected-result not 0.1. This is because the double had to truncate the approximation due to it 䏭 limited memory which results in a number that is..
Square detection doesn't find squares http://stackoverflow.com/questions/7731742/square-detection-doesnt-find-squares 0.02 true square contours should have 4 vertices after approximation relatively large area to filter out noisy contours and be..
How do you determine the size of an object in C++ ? http://stackoverflow.com/questions/937773/how-do-you-determine-the-size-of-an-object-in-c share improve this question To a first order approximation the size of an object is the sum of the sizes of its constituent..
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