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c++ Programming Glossary: math.hSetting ROI with mouse from a rectangle on a video http://stackoverflow.com/questions/10881397/setting-roi-with-mouse-from-a-rectangle-on-a-video is as follows #include stdlib.h #include stdio.h #include math.h #include string.h #include opencv2 opencv.hpp #include opencv2.. Output Code #include stdlib.h #include stdio.h #include math.h #include string.h #include cv.h #include highgui.h using namespace..
Should I include <xxxx.h> or <cxxxx> in C++ programs? http://stackoverflow.com/questions/13889467/should-i-include-xxxx-h-or-cxxxx-in-c-programs
How to use the PI constant in C++ http://stackoverflow.com/questions/1727881/how-to-use-the-pi-constant-in-c C program. I get the trigonometric functions with include math.h . However there doesn't seem to be a definition for PI in this.. from my math. h Define _USE_MATH_DEFINES before including math.h to expose these macro definitions for common math constants...
Swapping two variable value without using 3rd variable http://stackoverflow.com/questions/1826159/swapping-two-variable-value-without-using-3rd-variable test program written in C. #include stdlib.h #include math.h #define USE_XOR void xorSwap int x int y if x y x ^ y y ^ x..
Split an Integer into its digits c++ http://stackoverflow.com/questions/4207696/split-an-integer-into-its-digits-c stdafx.h #include cstdlib #include iostream #include math.h int countDigitsInInteger int n int count 0 while n 0 count.. stdafx.h #include cstdlib #include iostream #include math.h #include stack int countDigitsInInteger int n int count 0 while..
http://stackoverflow.com/questions/485525/round-for-float-in-c 0 round 0.1 0 round 0.9 1 I can find ceil and floor in the math.h but not round . Is it present in the standard C library under..
Checking if a double (or float) is nan in C++ http://stackoverflow.com/questions/570669/checking-if-a-double-or-float-is-nan-in-c for the responses I had this solved by using isnan form math.h which doesn't exist in cmath which I was #include ing at first...
Simple object detection using OpenCV and machine learning http://stackoverflow.com/questions/6416117/simple-object-detection-using-opencv-and-machine-learning #include stdio.h #include cv.h #include highgui.h #include math.h int main int argc char argv IplImage img NULL if img cvLoadImage..
What is the meaning of numeric_limits<double>::digits10 http://stackoverflow.com/questions/747470/what-is-the-meaning-of-numeric-limitsdoubledigits10 is the prototype #include float.h #include limits #include math.h #include iostream #include iomanip #include sstream #include..
Square detection doesn't find squares http://stackoverflow.com/questions/7731742/square-detection-doesnt-find-squares highgui.h #include cv.h #include iostream #include math.h #include string.h using namespace cv using namespace std void..
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle My attempt #include stdio.h #include stdlib.h #include math.h #include sys time.h double stoptime void struct timeval t gettimeofday..
Math interface vs cMath in C++ http://stackoverflow.com/questions/8734230/math-interface-vs-cmath-in-c my build system MacOS 10.6.3 for the POSIX math library is math.h however on my target system the name of the interface file is.. on my target system the name of the interface file is cmath.h. At school we use cmath and I would like to be sure my project.. contains them in the namespace std e.g. std sin while math.h contains them in the global namespace so just sin . There are..
http://stackoverflow.com/questions/9138790/cant-use-modulus-on-doubles integers. You're looking for the fmod function . #include math.h int main double x 6.3 double y 2.0 double z fmod x y return..
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