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Top Questions
47 votes

Efficient floating-point division with constant integer divisors

c algorithm math floating-point division asked Feb 20, 2016 at 19:01
stackoverflow.com

30 votes

Optimized low-accuracy approximation to `rootn(x, n)`

algorithm math floating-point bit-manipulation asked Aug 17, 2015 at 4:10
stackoverflow.com

25 votes

Efficient computation of the average of three unsigned integers (without overflow)

c algorithm bit-manipulation micro-optimization extended-precision asked Oct 27, 2020 at 21:21
stackoverflow.com

24 votes

Best machine-optimized polynomial minimax approximation to arctangent on [-1,1]?

c algorithm floating-point asked Nov 1, 2014 at 20:22
stackoverflow.com

22 votes

Efficient modulo-255 computation

c algorithm assembly bit-manipulation micro-optimization asked Jun 21, 2021 at 20:41
stackoverflow.com

21 votes

Efficiently computing (a - K) / (a + K) with improved accuracy

c algorithm floating-point floating-accuracy asked Feb 16, 2016 at 4:51
stackoverflow.com

18 votes

Efficient computation of 2**64 / divisor via fast floating-point reciprocal

c x86 floating-point arm division asked Apr 26, 2016 at 1:28
stackoverflow.com

16 votes

Implementation of sinpi() and cospi() using standard C math library

c floating-point trigonometry math.h asked Mar 14, 2017 at 17:39
stackoverflow.com

14 votes

Optimal 9-element sorting network that reduces to an optimal median-of-9 network?

algorithm median sorting-network asked Aug 2, 2017 at 6:54
stackoverflow.com

9 votes

What is the origin of "home free"?

etymology idioms asked Jul 15, 2018 at 18:15
english.stackexchange.com

1 2 3

Top Answers
95
Emulate "double" using 2 "float"s
stackoverflow.com

68
Why was the caret used for XOR instead of exponentiation?
softwareengineering.stackexchange.com

52
128 bit integer on cuda?
stackoverflow.com

32
What hair color did Évariste Galois have?
hsm.stackexchange.com

31
Numerically stable way to compute sqrt((b²*c²) / (1-c²)) for c in [-1, 1]
stackoverflow.com

31
What did Pete Stewart think he knew about efficient implementation of floating point denormals?
retrocomputing.stackexchange.com

30
Fastest Implementation of the Natural Exponential Function Using SSE
stackoverflow.com

28
How is arctan implemented?
stackoverflow.com

23
Who was Heinrich Kornblum?
hsm.stackexchange.com

23
Algorithm to convert an IEEE 754 double to a string?
stackoverflow.com

21
Algorithm for pow(float, float)
stackoverflow.com

20
Is it possible to put assembly instructions into CUDA code?
stackoverflow.com

19
How do I develop numerical routines for the evaluation of my own special functions?
math.stackexchange.com

19
Why does Math.cbrt(1728) produce a more accurate result than Math.pow(1728, 1/3)?
stackoverflow.com

18
How to find the position of the only-set-bit in a 64-bit value using bit manipulation efficiently?
stackoverflow.com

18
Why do gcc and NVCC (g++) see two different structure sizes?
stackoverflow.com

18
Which x87 first acquired the ability to flush denormal to zero?
retrocomputing.stackexchange.com

17
Why is "a =(b>0)?1:0" better than "if-else" version in CUDA?
stackoverflow.com

17
Numerically stable method for solving quadratic equations
stackoverflow.com

16
Very fast approximate Logarithm (natural log) function in C++?
stackoverflow.com

15
Atan2 Faster Approximation
math.stackexchange.com

15
Why do computer-science majors learn calculus?
cseducators.stackexchange.com

15
Why do higher-precision floating point formats have so many exponent bits?
stackoverflow.com

15
Why are denormal floating-point values slower to handle?
stackoverflow.com

14
x87 trigonometric instructions
retrocomputing.stackexchange.com

14
Units of cuda registers
stackoverflow.com

13
Does this usage of strncmp contain an out of bounds read?
stackoverflow.com

13
Whittaker-Shannon interpolation: Accuracy dies with speedup; can it be fixed?
scicomp.stackexchange.com

13
Compute logarithmic expression without floating point arithmetics or log
stackoverflow.com

13
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
stackoverflow.com

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