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c++ Programming Glossary: subtractionBetter algorithm for edge filter in video programming http://stackoverflow.com/questions/12971093/better-algorithm-for-edge-filter-in-video-programming then detecting the shape is trivial through background subtraction . If the camera is not fixed you can still detect the hand PDF..
Floating point comparison revisited http://stackoverflow.com/questions/13940316/floating-point-comparison-revisited exceeds ulps if the difference is less than that the subtraction is exact by Sterbenz Lemma. There was a suggestion about using.. 1 limits epsilon. Unless your significand has 149 bits the subtraction result rounds to 1 which is less than or equal to 1 limits epsilon..
How to design an algorithm to calculate countdown style maths number puzzle http://stackoverflow.com/questions/15293232/how-to-design-an-algorithm-to-calculate-countdown-style-maths-number-puzzle make Y. You can apply multiplication division addition and subtraction. So how does 1 3 7 6 8 3 make 348 Answer 8 7 3 1 6 348 . How..
implementing the derivative in C/C++ http://stackoverflow.com/questions/1559695/implementing-the-derivative-in-c-c But as h gets smaller the error from floating point subtraction increases since the numerator requires subtracting nearly equal.. If h is too small you can loose a lot of precision in the subtraction. So in practice you have to pick a not too small value of h..
The best cross platform (portable) arbitrary precision math library http://stackoverflow.com/questions/2568446/the-best-cross-platform-portable-arbitrary-precision-math-library 2^66 2^65 on the same platform. It MUST handle addition subtraction multiplication integer division remainder power increment decrement..
Good hash function for a 2d index http://stackoverflow.com/questions/2634690/good-hash-function-for-a-2d-index Row row Column column some other code for addition and subtraction of points is there too Row and Column are basically glorified..
How can I compare the performance of log() and fp division in C++? http://stackoverflow.com/questions/2858483/how-can-i-compare-the-performance-of-log-and-fp-division-in-c replace the floating point division with floating point subtraction yielding the following chain of operations twice log floating.. the following chain of operations twice log floating point subtraction floating point summation. In the end this boils down to whether..
What is the bit size of long on 64-bit Windows? http://stackoverflow.com/questions/384502/what-is-the-bit-size-of-long-on-64-bit-windows plan on not using it or only using it as the result of a subtraction of two uintptr_t values ptrdiff_t . But as the question points..
Performance issue for vector::size() in a loop http://stackoverflow.com/questions/3901630/performance-issue-for-vectorsize-in-a-loop condition isn't since it usually boils down to a pointer subtraction which is almost surely inlined . Edit as others said in general..
Floating point division vs floating point multiplication http://stackoverflow.com/questions/4125033/floating-point-division-vs-floating-point-multiplication many simultaneous additions. Division requires iterative subtraction that cannot be performed simultaneously so it takes longer...
How do I convert boost::posix_time::ptime to time_t? http://stackoverflow.com/questions/4461586/how-do-i-convert-boostposix-timeptime-to-time-t of actually getting epoch time directly aside from the subtraction you have already. Once you have a time_duration result of the.. have already. Once you have a time_duration result of the subtraction you can call total_seconds on the duration and store that in..
Flags to enable thorough and verbose g++ warnings http://stackoverflow.com/questions/5088460/flags-to-enable-thorough-and-verbose-g-warnings and then dividing which is not safe unlike addition subtraction and multiplication . Turning on this warning allowed me to safely..
How is the expression x---y parsed? Is it a legal expression? http://stackoverflow.com/questions/5649354/how-is-the-expression-x-y-parsed-is-it-a-legal-expression
Optimizations for pow() with const non-integer exponent? http://stackoverflow.com/questions/6475373/optimizations-for-pow-with-const-non-integer-exponent before you exponentiate. Furthermore bias adjustment by subtraction won't work on zero. Fortunately both adjustments can be achieved..
Add and Subtract 128 Bit Integers in C(++) http://stackoverflow.com/questions/741301/add-and-subtract-128-bit-integers-in-c improve this question If all you need is addition and subtraction and you already have your 128 bit values in binary form a library..
http://stackoverflow.com/questions/9860667/writing-robust-color-and-size-invariant-circle-detection-with-opencv-based-on use a blob detector not the HT method. For background subtraction I would suggest to try to estimate the color of the background..
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