1231234
"asdasd"
{}

a=213123

f[x_Integer,y_,z_]:=(a=1;b=x;a+b)

{{1,2},{1}}//MatrixForm
MatrixForm[{{1}}]
Transpose@{{12,2,3,4}}//MatrixForm

{{1,2},{1,2}}.{1,1}//MatrixForm

{{1,2},{1,2}}.{{1},{1}}//MatrixForm

Range[10][[2;;8]]

Table[{i,j},{i,1,5},{j,1,5}]

f[x_]:=x*2
Map[#*2&,Range[10]]

f[x_,y_]:=x*y
Apply[f,{1,2}]
f@@{1,2}

PolynomialMod[#,2]&@((x^2)+3x+1)

Plot[(x^2),{x,-1,1},PlotStyle->{Dashed, Red},PlotRange->{-1,2}]

g1=ListPlot[Table[{i,(i^2)},{i,1,10}]];
g2=ListLinePlot[Table[{i,(i^2)},{i,1,10}],PlotStyle->{Green,Dashed}];
Show[g1,g2,PlotRange->{0,200}]

PolynomialMod[x*(x+y)+x+1,x^2+y]

{{{1,2},{3,4}},{{1,2},{3,4}}}[[All,All,1]]

BarcodeRecognize@

Import["https://www.qr-code-generator.com/wp-content/themes/qr/new_structure/markets/core_market_full/generator/dist/generator/assets/images/websiteQRCode_noFrame.png"]

key=GenerateSymmetricKey[]

Encrypt[key,ExampleData[{"Text","LoremIpsum"}]]

Decrypt[key,%]

%