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全部文章 / MathModeling （共19篇）

Example: solving ODE using FEM method

clc; clear; % find the solution of du/dt -1 =0 Using finite element method % the zone of solution is [0,1] E = 5; % the number of elements N = E+1; %...

2020-07-14

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机器学习week1-week2

问题分类： 1.监督式学习：learning from data with labelclassification：离散型数据regression：连续型数据2.非监督式学习：learning from data without labelclustering：聚类线性回归举例：一元线...

2020-07-14

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[pySpark][笔记]spark tutorial from spark official site在ipython notebook 下学习pySpark

+ Spark Tutorial: Learning Apache Spark This tutorial will teach you how to use Apache Spark, a framework for large-scale data processing, within a...

2020-07-14

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[PCA]主成分分析算法

PCA算法，英文全称principal component analysis，翻译为主成分分析。在机器学习中，特征向量的维度有时候成百上千，甚至更多。面对这么多的影响因素，人们自然而然的就想到了抓住主要矛盾，只找出对结果影响最大的因素进行分析。pca给人们提供了这样的思路。基本思想举个例...

2020-07-14

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[blabla]a quick code about linear regression using gradient descent

use linear regression to predict the house price the original data is from the cousera machine learning course. when I finished the exercise with MA...

2020-07-14

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[线性常微分方程][1] 线性系统与线性理论基础LINEAR SYSTEMS AND THE LINEARITY PRINCIPLE

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[线性常微分方程][2] STRAIGHT-LINE SOLUTIONS

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[线性常微分方程][3] Phase Portraits for Linear Systems with Real Eigenvalues

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[线性常微分方程][4] COMPLEX EIGENVALUES

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[线性常微分方程][5]SPECIAL CASES REPEATED AND ZERO EIGENVALUES

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