2011年10月28日 · The first element of the tuple is the first index for each of the nonzero values: ([0, 1, 1]), and the second element of the tuple is the second index for each of the nonzero …

2013年5月31日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …

Time comparison of the two answers w.r.t length of the list. a = [int(random.random()>0.5) for i in range(10)] %timeit [i for i, e in enumerate(a) if e != 0] 683 ns ± 14 ns per loop (mean ± std. …

2013年4月12日 · In Numpy, nonzero(a), where(a) and argwhere(a), with a being a numpy array, all seem to return the non-zero indices of the array. What are the differences between these …

As a personal preference, I like the way nonzero looks but I prefer to use non-empty so I don't know what the consistency with hyphens is when prefixing "non". I also like the way …

2011年1月3日 · NumPy has the efficient function/method nonzero() to identify the indices of non-zero elements in an ndarray object. What is the most efficient way to obtain the indices of the …

2013年10月8日 · There is the following source code that was supplied for OpenCV 2.4.3, which may be helpful:. #include <opencv2/core/core.hpp> #include <vector> /*! @brief find non-zero …

2020年6月12日 · But for what is meant by nonzero (linear) equation, there should be no ambiguity: linear equations (in a given set of unknowns, over a given field) form a vector space …

2019年11月21日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …

An integer is any whole number or its negative, e.g. ..., -2, -1, 0, 1, 2, ... A non-zero integer is any of these but 0.