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Multiwii 代码解读
GPS部分GPS_angle[ROLL] = (nav[LON]*cos_yaw_x - nav[LAT]*sin_yaw_y) /10;GPS_angle[PITCH]= (nav[LON]*sin_yaw_y + nav[LAT]*cos_yaw_x) /10;这是二维向量的旋转,导航点的坐标是...
分类:其他好文   时间:2015-04-23 19:20:57    阅读次数:231
ZOJ 3640 Help Me Escape(概率dp+记忆化)
Background     If thou doest well, shalt thou not be accepted? and if thou doest not well, sin lieth at the door. And unto thee shall be his desire, and thou shalt rule over him.     And Cain ta...
分类:其他好文   时间:2015-04-22 09:41:23    阅读次数:199
Don’t Just Learn the Language, Understand Its Culture
Don’t Just Learn the Language, Understand Its CultureAnders NoråsiN HiGH SCHOOL, i HAD TO LEARN A FOREiGN LANGUAGE. At the time, I thought that I’d get by nicely being good at English, so I chose to sl...
分类:其他好文   时间:2015-04-21 09:43:12    阅读次数:128
浅谈凸包之Andrew 与 Graham
前言 脑补知识点: 1.向量的内积(数量积,点乘): 公式:a· b = |a| * |b| cos=a.x* b.y + b.x * a.y   2.向量的外积(向量积,差乘): 公式:|c|= |a|*|b|*sin = a.x * b.y - b.x * a.y   点在多边形内判定   多边形: 就是二维平面上被一系列首尾相接、闭合的折线段围成的区域 在程序中一般用定点...
分类:其他好文   时间:2015-04-18 10:08:06    阅读次数:144
IOS--常用数学函数
1、三角函数 double sin (double);正弦 double cos (double);余弦 double tan (double);正切 2 、反三角函数 double asin (double); 结果介于[-PI/2, PI/2] double acos (doub...
分类:移动开发   时间:2015-04-15 12:54:20    阅读次数:155
Add two numbers
题目: You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a sin...
分类:其他好文   时间:2015-04-09 06:20:09    阅读次数:147
Leetcode2 Add Two Numbers
描述: You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a sin...
分类:其他好文   时间:2015-04-08 21:15:14    阅读次数:107
javascript: Math.sin() cos() 用法
Math.sin(x) x 的正玄值。返回值在 -1.0 到 1.0 之间;Math.cos(x)x 的余弦值。返回的是 -1.0 到 1.0 之间的数;这两个函数中的X 都是指的“弧度”而非“角度”,弧度的计算公式为: 2*PI/360*角度;30° 角度 的弧度 = 2*PI/360*30如何得...
分类:编程语言   时间:2015-04-07 19:01:34    阅读次数:195
[Leet code 2]Two Sum
1 题目You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a sin...
分类:其他好文   时间:2015-04-06 17:01:05    阅读次数:112
Matlab之print,fprint,fscanf,disp函数(转)
print:print函数可以把函数图形保存成图片:minbnd = -4*pi;maxbnd = 4*pi;t = minbnd:0.1*pi:maxbnd;plot(t, sin(t), 'g', 'Linewidth', 2);line([minbnd, maxbnd], [0, 0]); %...
分类:其他好文   时间:2015-04-06 11:21:23    阅读次数:186
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