在C++中,有一些情况下,我们需要将tuple或者vector中的值当做参数传递到一个函数当中,传统的做法如下: std::vector<int> v; call(v[0], v[1], v[2]); auto r = std::make_tuple(1, 2.1, 1ull) call(std::get<0>(r), std::get<1>(r), std::get<2>(r)); 我们可以
tuple(2, 3.14, 'c'); __utils::print_tuple((t)); std::cout << std::endl; // => (2, 3.14, 'c') std::cout << size(t) << std::endl; // => 3 std::cout << last(t) << ", " << last2(t) << std::endl; // => c, c return 0; } // filename: ch1-tuple...
#include"emplace.hpp"#include<iostream>#include<vector>#include<string>#include#include<tuple>#include<utility>namespaceemplace_ {///reference:http://www.cplusplus.com/reference/vector/vector/emplace_back/inttest_emplace_1() { {/*template <class... Args> void emplace_back (Args&&... args);...
Other: <algorithm> <bitset> <chrono> <codecvt> <complex> <exception> <functional> <initializer_list> <iterator> <limits> <locale> <memory> <new> <numeric> <random> <ratio> <regex> <stdexcept> <string> <system_error> <tuple> <type_traits> <typeindex> <typeinfo> <utility> <valarray>...
return tuple(self) == tuple(other) def __abs__(self): return math.sqrt(sum(x * x for x in self)) # hypot只能计算二维欧氏距离,现在是多维 def __bool__(self): return bool(abs(self)) @classmethod def frombytes(cls, cotets): ...
n元向量(n-tuplevector)也叫n维向量,是平面向量的推广,设n为正整数,数集P中的n个元素构成的有序组(a1,a2,…,an)称为P上的n元向量,其中ai(i
from array import array import reprlib import math import numbers import functools import operator class Vector: typecode = 'd' shorcut_name = 'xyzt' """ 省略的代码 """ def __eq__(self, other): return tuple(self) == tuple(other) def __hash__(self): hashes = (hash(x) for x ...
{i,j = 1}^d {{c_{i,j}}I({\\mu _i},{\\mu _j}) + 2\\sum\\limits_{j = 1}^d {\\int_{{K_j}} {{Q_j}d{\\mu _j}} } } $$ of a d -tuple of positive measures µ = (µ 1 , …, µ d ) ∈ M r ( K ), where µ j is supported in K j and ...
25.7 Conclusion We have presented an algorithm for rendering vector art defined by closed paths containing quadratic and cubic Bézier curves. We locally triangulate each Bézier convex hull and globally triangulate the interior (right-hand side) of each path. We assign procedural texture coordinate...
19.(本小题满分17分)n元向量(n-tuple vector)也叫n维向量,是平面向量的推广,设n为正整数,数集P中的n个元素构成的有序组 (a_1⋅a_2,⋯,a_n) 称为P上的n元向量,其中 a_1(i=1,2,⋯,n) 为该向量的第f个分量.n元向量通常用希腊字母 a.B.y等表示,如 a=(a_1,a_2,⋯,a_n) ,P...