• ## BiliBili live: Vue.js Podcast (small record)~~~

Time：2021-3-31

Host: Yin Ming virtual dom And then Balabala You Xiaoyou Server side rendering: streaming renderingV-model used in custom componentsThe composition of business logic needs to be edible, and attention should be paid to the decoupling of parent-child components (bidirectional binding is not recommended)Prop was killed Three shares and four Vue2.0 is more compact and fully […]

• ## Chapter 1: pythagorean array (2)

Time：2020-12-10

Pythagorean array theorem Pythagorean array theorem: each primitive Pythagorean array (a, B, c) (where a is odd and B is even) can be obtained from the following formula: a = st\\ b = \frac{s^2-t^2}{2}\\ c = \frac{s^2 + t^2}{2} amongs>t\geq 1Is any odd number that has no common factor.The proof process is as follows:Considering the […]

• ## Chapter three: pythagorean array and unit circle

Time：2020-12-9

We describeda^2 + b^2 = c^2All integer solutions ofa，b，c, ifc^2Divide by this equation (\frac{a}{c})^2 + (\frac{b}{c})^2 = 1 So rational numbers are right(\frac{a}{c},\frac{b}{c})It’s an equationx^2 + y^2 = 1The solution ofequationx^2 + y^2 = 1Represents a circle C with a center at (0, 0) radius of 1. How to find the points on circle C […]

• ## Chapter 1: pythagorean array (1)

Time：2020-11-30

Pythagoras theorem (Pythagorean theorem) indicates that the sum of the squares of the lengths of the two right angles of any right triangle is equal to the square of the length of the hypotenuse. It is expressed by formula a^2 + b^2 = c^2 The first question is whether there are infinitely many Pythagorean arrays […]