** Hello World**
first item
second item *third item
first item
second item
third item
this is a linear equation: \[y= 2x+1\]
for matrix: \[ k= \begin{bmatrix} 1 & 3 & 5\\ 2 & 12& 0\\ 11 & 2& 10 \end{bmatrix} \]
y= 16
k= sqrt(y)
k
## [1] 4
’’‘{r Saeed_Code, eval=T} y=16 k=sqrt(y) k’’’
’’’[r]
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