建立方程 设a为直线外一点，b,c为直线上两点 解出符号解 使用mathematics工具： Solve[{(x-ax)*(cx-bx)+(y-ay)*(cy-by)== 0,(y-cy)*(x-bx)==(y-by)*(x-cx)},{x,y}] 得出如下： {{x->-(((bx-cx)... ...
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其他好文 时间：
2018-10-05 17:18:10
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201
Recursive sequence Time Limit:1000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u HDU 5950 Description Farmer John likes to play mathematics gam ...
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2018-10-05 16:03:47
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135
Partial Tree In mathematics, and more specifically in graph theory, a tree is an undirected graph in which any two nodes are connected by exactly one ...
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其他好文 时间：
2018-10-01 20:42:57
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145
A prince of the Science Continent was imprisoned in a castle because of his contempt for mathematics when he was young, and was entangled in some math ...
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其他好文 时间：
2018-09-16 16:03:42
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206
A prince of the Science Continent was imprisoned in a castle because of his contempt for mathematics when he was young, and was entangled in some math ...
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其他好文 时间：
2018-09-15 20:08:54
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279
Description Longge is good at mathematics and he likes to think about hard mathematical problems which will be solved by some graceful algorithms. Now ...
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其他好文 时间：
2018-09-13 16:34:58
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266
In this article, I’ll present my ideas about how to improve mathematics study, which are the forewords of my handwriting notes on Royden’s “Real Analy ...
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其他好文 时间：
2018-08-19 11:00:37
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147
反常识经济学.3:为什么常识会撒谎 中文书名是标题党。这个反常识经济学的英文书不是一个系列，这一本的英文名是： The Big Questions：Tackling the Problems of Philosophy with Ideas from Mathematics, Economics, ...
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其他好文 时间：
2018-08-17 21:28:21
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230
题目链接：https://www.nowcoder.com/acm/contest/146/G G、Counting regions | 时间限制：1 秒 | 内存限制：128M Niuniu likes mathematics. He also likes drawing pictures. On ...
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其他好文 时间：
2018-08-12 21:41:54
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192
题目描述 In mathematics, matrix multiplication or matrix product is a binary operation that produces a matrix from two matrices with entries in a field, o ...
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其他好文 时间：
2018-08-10 01:28:21
阅读次数：
158
