Stack Exchange

Stephen Canon

Lebanon, NH

The first man to earn the silver [assembly] and gold [floating-point] badges.

Assembly programmer, mathematician, micro-optimization and micro-architecture specialist.

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Top Questions
Top Answers
720
What is the rationale for all comparisons returning false for IEEE754 NaN values?
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709
Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
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359
What is "vectorization"?
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223
Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
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213
Objective-C - float checking for nan
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200
What is the relation between BLAS, LAPACK and ATLAS
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158
Protecting executable from reverse engineering?
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154
C - determine if a number is prime
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134
Performance of built-in types : char vs short vs int vs. float vs. double
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123
How to check if a static library is built for 64-bit?
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122
How to expand and compute log(a + b)?
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114
C/C++: Force Bit Field Order and Alignment
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111
Retain precision with double in Java
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101
Variable declaration after goto Label
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91
Why do programming languages round down until .6?
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85
static function in C
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74
What is the point of noreturn?
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73
Large numbers erroneously rounded in JavaScript
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73
Precision of multiplication by 1.0 and int to float conversion
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71
Double vs float on the iPhone
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65
Comparing float and double data types in objective C
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61
Is there a floating point value of x, for which x-x == 0 is false?
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57
Difference between MOVDQA and MOVAPS x86 instructions?
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56
Should we generally use float literals for floats instead of the simpler double literals?
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53
How to log a method's execution time exactly in milliseconds?
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51
Why is memset() incorrectly initializing int?
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51
Fixed-size floating point types
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49
How many double numbers are there between 0.0 and 1.0?
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47
3D Least Squares Plane
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45
'float' vs. 'double' precision
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