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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 '16 at 19:01
stackoverflow.com
30
votes
Optimized low-accuracy approximation to `rootn(x, n)`
algorithm
math
floating-point
bit-manipulation
asked Aug 17 '15 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 '20 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 '14 at 20:22
stackoverflow.com
21
votes
Efficiently computing (a - K) / (a + K) with improved accuracy
c
algorithm
floating-point
floating-accuracy
asked Feb 16 '16 at 4:51
stackoverflow.com
17
votes
Efficient computation of 2**64 / divisor via fast floating-point reciprocal
c
floating-point
bit-manipulation
division
asked Apr 26 '16 at 1:28
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 '17 at 6:54
stackoverflow.com
13
votes
Implementation of sinpi() and cospi() using standard C math library
c
floating-point
trigonometry
math.h
asked Mar 14 '17 at 17:39
stackoverflow.com
8
votes
What is the origin of “home free”?
etymology
idioms
asked Jul 15 '18 at 18:15
english.stackexchange.com
8
votes
Accurate and efficient computation of the inverse Langevin function
algorithms
efficiency
accuracy
special-functions
asked Sep 21 '18 at 21:30
scicomp.stackexchange.com
1
2
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Top Answers
88
Emulate “double” using 2 “float”s
stackoverflow.com
66
Why was the caret used for XOR instead of exponentiation?
softwareengineering.stackexchange.com
52
128 bit integer on cuda?
stackoverflow.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
25
Fastest Implementation of the Natural Exponential Function Using SSE
stackoverflow.com
22
How is arctan implemented?
stackoverflow.com
20
Who was Heinrich Kornblum?
hsm.stackexchange.com
20
Is it possible to put assembly instructions into CUDA code?
stackoverflow.com
20
Algorithm to convert an IEEE 754 double to a string?
stackoverflow.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
17
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
Why do gcc and NVCC (g++) see two different structure sizes?
stackoverflow.com
17
How do I develop numerical routines for the evaluation of my own special functions?
math.stackexchange.com
16
Numerically stable method for solving quadratic equations
stackoverflow.com
15
Why do computer-science majors learn calculus?
cseducators.stackexchange.com
15
Algorithm for pow(float, float)
stackoverflow.com
14
Very fast approximate Logarithm (natural log) function in C++?
stackoverflow.com
14
x87 trigonometric instructions
retrocomputing.stackexchange.com
13
Units of cuda registers
stackoverflow.com
13
Does this usage of strncmp contain an out of bounds read?
stackoverflow.com
13
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
stackoverflow.com
12
Atan2 Faster Approximation
math.stackexchange.com
12
Why do higher-precision floating point formats have so many exponent bits?
stackoverflow.com
12
Whittaker-Shannon interpolation: Accuracy dies with speedup; can it be fixed?
scicomp.stackexchange.com
12
cuda inline and noinline device functions
stackoverflow.com
12
In what types of loops is it best to use the #pragma unroll directive in CUDA?
stackoverflow.com
12
Compute logarithmic expression without floating point arithmetics or log
stackoverflow.com
1
2
3
4
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