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hello

nice to meet you.

young angry

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1. 楊祐翔笨蛋

• 真的很白癡

equation

This summation expression \(\sum_{i=1}^n X_i\) appears inline.

A friend once said:

It’s always better to give than to receive

This text is displayed verbatim / preformatted

We defined the add function to compute the sum of two numbers. LaTeX Equations

it is integral \(\int_{1}^{5} x_i^2*\lambda dx\)

head(iris)

##   Sepal.Length Sepal.Width Petal.Length Petal.Width Species
## 1          5.1         3.5          1.4         0.2  setosa
## 2          4.9         3.0          1.4         0.2  setosa
## 3          4.7         3.2          1.3         0.2  setosa
## 4          4.6         3.1          1.5         0.2  setosa
## 5          5.0         3.6          1.4         0.2  setosa
## 6          5.4         3.9          1.7         0.4  setosa