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  2. Bit manipulation - Wikipedia

    en.wikipedia.org/wiki/Bit_manipulation

    To determine if a number is a power of two, conceptually we may repeatedly do integer divide by two until the number won't divide by 2 evenly; if the only factor left is 1, the original number was a power of 2. Using bit and logical operators, there is a simple expression which will return true (1) or false (0):

  3. Carry-less product - Wikipedia

    en.wikipedia.org/wiki/Carry-less_product

    So the carry-less product of a and b would be c = 101100011101100 2. For every bit set in the number a, the number b is shifted to the left as many bits as indicated by the position of the bit in a. All these shifted versions are then combined using an exclusive or, instead of the regular addition which would be used for regular long ...

  4. Bitwise operation - Wikipedia

    en.wikipedia.org/wiki/Bitwise_operation

    In computer programming, a bitwise operation operates on a bit string, a bit array or a binary numeral (considered as a bit string) at the level of its individual bits.It is a fast and simple action, basic to the higher-level arithmetic operations and directly supported by the processor.

  5. Arithmetic shift - Wikipedia

    en.wikipedia.org/wiki/Arithmetic_shift

    The formal definition of an arithmetic shift, from Federal Standard 1037C is that it is: . A shift, applied to the representation of a number in a fixed radix numeration system and in a fixed-point representation system, and in which only the characters representing the fixed-point part of the number are moved.

  6. Find first set - Wikipedia

    en.wikipedia.org/wiki/Find_first_set

    The complementary operation that finds the index or position of the most significant set bit is log base 2, so called because it computes the binary logarithm ⌊log 2 (x)⌋. [1] This is closely related to count leading zeros ( clz ) or number of leading zeros ( nlz ), which counts the number of zero bits preceding the most significant one bit.

  7. A foolproof guide to image manipulation in Python with OpenCV

    www.aol.com/foolproof-guide-image-manipulation...

    OpenCV is a huge image and video processing library designed to work with many languages such as python, C/C++, Java, and more. It is the foundation for many of the applications you know that deal ...

  8. Power of two - Wikipedia

    en.wikipedia.org/wiki/Power_of_two

    A prime number that is one less than a power of two is called a Mersenne prime. For example, the prime number 31 is a Mersenne prime because it is 1 less than 32 (2 5). Similarly, a prime number (like 257) that is one more than a positive power of two is called a Fermat prime—the exponent itself is a power of

  9. When do fifth College Football Playoff rankings come out ...

    www.aol.com/fifth-college-football-playoff...

    The College Football Playoff releases the fifth top 25 rankings of the season Tuesday. Here’s what to know and how to watch the show.