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How do I achieve the theoretical maximum of 4 FLOPs per cycle?
...pd(x);
r1 = _mm_set1_pd(y);
r8 = _mm_set1_pd(-0.0);
r2 = _mm_xor_pd(r0,r8);
r3 = _mm_or_pd(r0,r8);
r4 = _mm_andnot_pd(r8,r0);
r5 = _mm_mul_pd(r1,_mm_set1_pd(0.37796447300922722721));
r6 = _mm_mul_pd(r1,_mm_set1_pd(0.24253562503633297352));
r7 = _mm_mul_pd(r1,_mm_set...
How can I apply a function to every row/column of a matrix in MATLAB?
...tors — <, <=, >, >=, ==, ~=
Logical operators — &, |, xor
Bit-wise functions — bitand, bitor, bitxor
Elementary math functions — max, min, mod, rem, hypot, atan2, atan2d
For example, you can calculate the mean of each column in a matrix A,
and then subtract the vec...
从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
从源代码剖析Mahout推荐引擎前言Mahout框架中cf.taste包实现了推荐算法引擎，它提供了一套完整的推荐算法工具集，同时规范了数据结构，并标准化了程序开发过程。应用推...前言
Mahout框架中cf.taste包实现了推荐算法引擎，它提供...
Why is a boolean 1 byte and not 1 bit of size?
... Not sure I would agree that bitwise operations are slow. ands, nots, xors etc are very fast. It is typically the implementation of the bitwise operations that are slow. At the machine level they are quite fast. Branching... now that is slow.
– Hogan
Ja...
error C2664: “find_char”: 不能将参数 1 从“const char [14]”转换为“...
error C2664: “find_char”: 不能将参数 1 从“const char [14]”转换为“std::string &出错代码：#include <iostream>#include <string>using std::cout;using std::endl;using std::string; const引用形参举例 非const...出错代码：
#include <iostream>
#include <string>
using...
C++虚继承的概念 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++虚继承的概念C++中虚拟继承的概念为了解决从不同途径继承来的同名的数据成员在内存中有不同的拷贝造成数据不一致问题，将共同基类设置为虚基类。这时从...C++中虚拟继承的概念
为了解决从不同途径继承来的同名的数据...
Or versus OrElse
...her to VB where four logical operators: And, AndAlso, Or, OrElse, Not, and Xor are both, logical and Bitwise operators.
– Jean-François
May 9 '19 at 16:50
add a comment
...
subtle differences between JavaScript and Lua [closed]
...xample, if foo ~= 20 then ... end.
Lua 5.3 and up use ~ for binary bitwise XOR, whereas JS uses ^.
In Lua, any type of value (except nil and NaN) can be used to index a table. In JavaScript, all non-string types (except Symbol) are converted to strings before being used to index an object. For exam...
filename and line number of python script
..., '__rpow__', '__rrshift__', '__rshift__', '__rsub__', '__rtruediv__', '__rxor__', '__setattr__', '__sizeof__', '__str__', '__sub__', '__subclasshook__', '__truediv__', '__trunc__', '__xor__', 'bit_length', 'conjugate', 'denominator', 'imag', 'numerator', 'real']
14
...
How to get elements with multiple classes
...ast one class)
var list = document.querySelectorAll(".class1,.class2");
XOR (one class but not the other)
var list = document.querySelectorAll(".class1:not(.class2),.class2:not(.class1)");
NAND (not both classes)
var list = document.querySelectorAll(":not(.class1),:not(.class2)");
NOR (not ...