1602.sagews

x=5
y=5

x+y

10

x^y

\newcommand{\Bold}[1]{\mathbf{#1}}\hbox{x^y}

x=4
y=x+6
y

\newcommand{\Bold}[1]{\mathbf{#1}}\hbox{x=4 y=x+6 y}

y

\newcommand{\Bold}[1]{\mathbf{#1}}\hbox{y}

plot(y)

\newcommand{\Bold}[1]{\mathbf{#1}}\hbox{plot(y)}