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PHP Beginners Learning Method _php Foundation

Often in some forums and QQ group to see some friends will ask "How to learn PHP, how to learn * * * * * language", but others answered most is: the most "simple" start. This simple perhaps really is not simple, hehe. Here I would like to share some of my learning process. Each person's study way is different, writes this article The goal is to share one's own learning process, only for the reference, do

Fast Learning Method

. Establishing accurate knowledge connections and debugging errors is enough to form a deep problem perspective. Mechanized skills and rote memorization are usually only useful if you have a positive intuition about the nature of the problem.Delve (the Drilldown Method): You learn fasterOver the course of the last few, I have perfected a way to accelerate the process of understanding through layers. This method

Computer Learning Method

improved. IV,Instance walkthrough Learning Mode Quickly improve application development capabilities and experience through a large number of contacts and instance drills. "Concept --- understanding --- instance": A concept, an understanding, and an instance Learning methods and channels: L traditional paper books: Classic books need to be studied over and over again, and paper books should

Introduction to machine learning algorithms (i) the gradient descent method to realize the linear regression __ algorithm

of finding the best fitting line is actually looking for the best b b and M M. In order to find the best fit line, here we first define what line is the best line. We define error (cost function): Error function errors (b,m) =1n∑1n ((B+MXI) −yi) 2 error functions \ error_{(b, M)}=\frac{1}{n}\sum_{1}^{n} ((b+mx_i)-y_i) ^{2} The Python code that calculates the loss function is as follows: # y = b + mx def compute_error_for_line_given_points (b, M, points): totalerror = SUM ((((b + M * point[

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