c++ Programming Glossary: logarithm

http://stackoverflow.com/questions/10118137/fast-n-choose-k-mod-p-for-large-n

the inverse of that number. Thus we have to pay the logarithm for the exponentiation only once. Of course again we have to..

Efficient way to determine number of digits in an integer

http://stackoverflow.com/questions/1489830/efficient-way-to-determine-number-of-digits-in-an-integer

would be a lookup. Should be faster than the much shorter logarithm based approach. If you don't care about counting the ' ' remove..

Converting an FFT to a spectogram

http://stackoverflow.com/questions/1679974/converting-an-fft-to-a-spectogram

thing to do to get all of an FFT visible is to take the logarithm of the magnitude. So the position of the output buffer tells..

The best cross platform (portable) arbitrary precision math library

http://stackoverflow.com/questions/2568446/the-best-cross-platform-portable-arbitrary-precision-math-library

Ability to handle functions like sqrt square root log logarithm that do not produce integer results is a plus. Ability to handle..

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

type conversion etc. Cheers c performance floating point logarithm share improve this question Do you divide by the same integer.. to hoist other computations into the latency of the logarithm. This means that in practice divide will often be a good bit..

Optimizations for pow() with const non-integer exponent?

http://stackoverflow.com/questions/6475373/optimizations-for-pow-with-const-non-integer-exponent

numbers were originally invented as an approximation to logarithms so you can use the integer value as an approximation of log2.. you can multiply by a constant factor and convert the logarithm back with the convert to integer instruction. On SSE the relevant.. of zero. This bias must be removed before you multiply the logarithm and re added before you exponentiate. Furthermore bias adjustment..

How to do an integer log2() in C++?

http://stackoverflow.com/questions/994593/how-to-do-an-integer-log2-in-c

always will return a correct answer c floating accuracy logarithm share improve this question You can use this method instead..